We can use proportions to solve this problem.
Let's start by setting up a proportion:
female doctors/total doctors = 27.7%/100%
We can then substitute the values we know and solve for the total number of doctors:
44,900/x = 27.7%/100%
To solve for x, we can cross-multiply and simplify:
44,900 * 100% = x * 27.7%
449,000 = 0.277x
x = 449,000/0.277
x ≈ 1,621,464.33
Rounding this to the nearest whole number, we get:
The total number of registered doctors is about 1,621,464.