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Finding the Fourth Proportional to 482,615.80, 724,010.10 and 202,161.40

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Solution

The fourth proportional to 482,615.80, 724,010.10 and 202,161.40 is: 303,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,615.80 : 724,010.10 = 202,161.40 : x
  2. Step 2: Convert to fraction form
    482,615.80/724,010.10 = 202,161.40/x
  3. Step 3: Cross multiply
    482,615.80x = 724,010.10 × 202,161.40
  4. Step 4: Simplify right side
    482,615.80x = 146,366,895,430.14
  5. Step 5: Solve for x
    x = 146,366,895,430.14/482,615.80
  6. Step 6: Final answer
    x = 303,278.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.