A piece of land is allocated to A and B for fertilization according to the ratio of 4:5. The actual amount of fertilization by A is 480 square meters, which is 40 square meters more than the allocated task. How many square meters does this land have?
一块地按4：5分配给甲乙两人去施肥，实际甲施肥480平方米，超过分配任务40平方米，这块地共有多少平方米？
<gadget id="calculator">480 - 40</gadget>
<output>440</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

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

<gadget id="calculator">440 / (4/9)</gadget>
<output>990</output>

<result>990</result>