Mass of the of sample using the balance is 433.2 g
You can estimate the decimal part because it not exactly 3
400 + 30 + 3.2
To find the density of the sample you divide mass / volume = density
Mass = 433.2 and Volume = 65.6ml 433.2 g / 65.6
6. 6 g/ml^3
Density = 6.6 g / ml^3 and Mass = 433.2 g