The school held a large-scale group gymnastics performance "Welcome to the Olympics". According to the design, there are two phalanxes. The first phalanx requires 180 people, and the ratio of the number of people in the second phalanx is 3:5. How many people in the school will participate in the group gymnastics performance?
学校举行"迎奥运"大型团体操表演，按照设计有两个方阵．第一个方阵需要180人，与第二个方阵人数的比是3：5，学校一共有多少人参加团体操表演？
<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">60 * 5</gadget>
<output>300</output>

<gadget id="calculator">300 + 180</gadget>
<output>480</output>

<result>480</result>