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Finding the Fourth Proportional to 482,740.60, 724,208.10 and 404,397.40

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Solution

The fourth proportional to 482,740.60, 724,208.10 and 404,397.40 is: 606,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,740.60 : 724,208.10 = 404,397.40 : x
  2. Step 2: Convert to fraction form
    482,740.60/724,208.10 = 404,397.40/x
  3. Step 3: Cross multiply
    482,740.60x = 724,208.10 × 404,397.40
  4. Step 4: Simplify right side
    482,740.60x = 292,867,872,698.94
  5. Step 5: Solve for x
    x = 292,867,872,698.94/482,740.60
  6. Step 6: Final answer
    x = 606,677.53

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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.