"of approximate" is correct and usable in written English
You can use it to describe an estimation or approximation of something. For example, "He gave us a figure of approximate 10,000."
Let's get this straight: I'm not going to join the collective glorification of approximate journalism.
Then dropped Vernon - the voice of approximate reason - into the thick of it.
Carve the skin into pieces about 5cm square or into irregular shapes of approximate size.
Ms. Krull had some lovely moments as the bereaved Emilia, though she, too, fell victim to moments of approximate pitch.
The ingenious blend of approximate identities out of which the Cairo Chest is constructed has made it oddly impervious to any individual act of taste.
Chhaidy, now 42, is a native of Theiva, a village of approximate 150 homes in Mizoram, near the Myanmar border.
Animal representation of approximate quantities.
A number of approximate formulations have also been developed.
Find the first level of approximate solution: standard multilevel method.
Find the third level of approximate solution: multilevel augmentation method.
Find the fourth level of approximate solution: multilevel augmentation method.
