The phrase "actually four times" is correct and usable in written English.
You can use it to emphasize the frequency of an event or action, often in a context where the number may be surprising or counter to expectations.
Example: "I thought I had only seen that movie twice, but it turns out I have actually four times."
Alternatives: "in fact four times" or "really four times".
And he replied, "Actually, four times a day".
The device's key selling point will be its ability to record video in 4K resolution (the next 'step up' from 1080p that's actually four times the resolution of normal HD) although it's already been suggested that Samsung's forthcoming Galaxy Note III will offer the same functionality.
While that might seem small compared to the bigger social networks like Facebook and Twitter, that's actually four times the size of the newer rival Foursquare, that is getting much of the hype these days.
Government recommendations are actually four times higher than what you really need.
The article also states that three times as many pedestrians were ticketed downtown as in the next highest area, covering skid row and Boyle Heights; actually, four times as many pedestrians were ticketed downtown as in the next highest area, covering Van Nuys.
The spokesman, who asked the Center to withhold his name because intelligence officials and police have arrested him in the past and accused him of "anti-national activities," claimed the number of deaths was actually "four times higher" than UCIL admitted.
The amount involved—$14 billion— was actually ten times more than before.
"But there are experts who say the problem is actually five times as big.
How do you visualise it?' He said, 'Life-size of course.'" The result was actually three times bigger than Stonehenge.
But it never appeared in the magazine, although Arno's cartoons did countless times (actually one thousand one hundred and sixty-nine times, according to my database).
