There is a drink made with strawberry powder and milk at a ratio of 1:200. Now, 800g of milk is used to make this drink. How many grams of strawberry powder should be used?
有种饮料使用草莓粉和牛奶按1：200调制而成的，现用800g牛奶调制成这种饮料，要用草莓粉多少克？
<gadget id="calculator">1 / 200</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">(1/200) * 800</gadget>
<output>4</output>

<result>4</result>