The fruit shop shipped a batch of fruits, including 400 kilograms of bananas, the quality of the bananas is that of apples (8/9), and the quality of apples is that of oranges (3/4). How many kilograms of oranges did the fruit shop ship?
水果店运来一批水果，其中香蕉400千克，香蕉的质量是苹果的(8/9)，苹果的质量是橘子的(3/4)．水果店运来橘子多少千克？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">400 / (8/9) / (3/4)</gadget>
<output>600</output>

<result>600</result>