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Finding the Fourth Proportional to 724,505.16, 1,085,344.02 and 474,429

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Solution

The fourth proportional to 724,505.16, 1,085,344.02 and 474,429 is: 710,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,505.16 : 1,085,344.02 = 474,429 : x
  2. Step 2: Convert to fraction form
    724,505.16/1,085,344.02 = 474,429/x
  3. Step 3: Cross multiply
    724,505.16x = 1,085,344.02 × 474,429
  4. Step 4: Simplify right side
    724,505.16x = 514,918,678,064.58
  5. Step 5: Solve for x
    x = 514,918,678,064.58/724,505.16
  6. Step 6: Final answer
    x = 710,717.75

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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.