Master Zhang processed a batch of parts in three weeks, and processed 450 pieces in the first week, accounting for 30% of the parts. The ratio of the number of parts processed in the second week to the third week was 2:3. How many parts were processed in the third week? indivual?
张师傅三周内加工一批零件，第一周加工了450个，占这批零件的30%，第二周与第三周加工零件个数的比是2：3，第三周加工零件多少个？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">450 / (3/10)</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 - 450</gadget>
<output>1_050</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1_050 * (3/5)</gadget>
<output>630</output>

<result>630</result>