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Finding the Fourth Proportional to 616,259.70, 865,251.90 and 616,259.70

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Solution

The fourth proportional to 616,259.70, 865,251.90 and 616,259.70 is: 865,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,259.70 : 865,251.90 = 616,259.70 : x
  2. Step 2: Convert to fraction form
    616,259.70/865,251.90 = 616,259.70/x
  3. Step 3: Cross multiply
    616,259.70x = 865,251.90 × 616,259.70
  4. Step 4: Simplify right side
    616,259.70x = 533,219,876,318.43
  5. Step 5: Solve for x
    x = 533,219,876,318.43/616,259.70
  6. Step 6: Final answer
    x = 865,251.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.