You are a microbiologist working for a food testing company. You received a pasteurized milk sample and are asked to determine the total aerobic plate count (CFU/mL). You diluted the milk sample, plated 1 mL of different dilutions (one plate for each dilution) onto nutrient agar plates and incubate for 24 hours at 37%C. Next day, you counted 3 colonies from 1:10000 (10⁻⁴), 50 colonies from the dilution 1:1000 (10⁻³), 250 colonies from 1:100 (10⁻²) and colonies were too numerous to count from 1:10 (10⁻¹). What is the CFU/mL in the initial milk sample?