A, B, and C jointly complete a batch of machine parts. A completes 73% of the total. The ratio of the number of completed parts between B and C is 5:4. It is known that A has completed 549 more parts than C. Find A How many parts were completed?
甲、乙、丙三人共同完成一批机器零件，甲完成了总数的73%，乙、丙完成零件的个数比是5：4，已知甲比丙多完成了零件549个，求甲完成了多少个零件？
<gadget id="calculator">73 / 100</gadget>
<output>73/100 = around 0.73</output>

<gadget id="calculator">27 / 100</gadget>
<output>27/100 = around 0.27</output>

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

<gadget id="calculator">(27/100) * (4/9)</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">(73/100) - (3/25)</gadget>
<output>61/100 = around 0.61</output>

<gadget id="calculator">549 / (61/100)</gadget>
<output>900</output>

<gadget id="calculator">900 * (73/100)</gadget>
<output>657</output>

<result>657</result>