To solve this problem you must apply the proccedure shown below:
1. You have the following information given in the problem:
-The mass of 4 large zucchini is about 2 kilograms.
2. Then, you have:
1 kilogram-----1000 grams
2 kilograms--..x
x=2x1000/1
x=2000 grams
3. Then, you have:
4 large zucchini----2000 grams
1 large zucchini----x
x=2000/4
x=500 grams
The answer is: 500 grams