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Finding the Fourth Proportional to 616,249.20, 865,237.20 and 616,249.20

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Solution

The fourth proportional to 616,249.20, 865,237.20 and 616,249.20 is: 865,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,249.20 : 865,237.20 = 616,249.20 : x
  2. Step 2: Convert to fraction form
    616,249.20/865,237.20 = 616,249.20/x
  3. Step 3: Cross multiply
    616,249.20x = 865,237.20 × 616,249.20
  4. Step 4: Simplify right side
    616,249.20x = 533,201,732,310.24
  5. Step 5: Solve for x
    x = 533,201,732,310.24/616,249.20
  6. Step 6: Final answer
    x = 865,237.20

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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.