There is a batch of fruits in the fruit shop. On the first day, 1/3 of the total amount is sold, and 360 kilograms are sold on the second day, leaving 4/9 of the total amount. How many kilograms are there in this batch of fruits?
水果店有一批水果，第一天卖出总数的(1/3)，第二天卖出360千克，还剩下总数的(4/9)，求这批水果有多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 - (1/3) - (4/9)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">360 / (2/9)</gadget>
<output>1_620</output>

<result>1_620</result>