Hope Primary School visited the Provincial Museum. There were 40 people in the third grade, three times the number in the fourth grade, and four times the number in the fifth grade. How many people in the fifth grade participated?
希望小学参观省博物馆，三年级有40人参加，四年级参加的人数是三年级的3倍，五年级参加的人数是四年级的4倍，五年级有多少人参加？
<gadget id="calculator">40 * 3 * 4</gadget>
<output>480</output>

<result>480</result>