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Finding the Fourth Proportional to 615,251.85, 922,877.78 and 577,854.15

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Solution

The fourth proportional to 615,251.85, 922,877.78 and 577,854.15 is: 866,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,251.85 : 922,877.78 = 577,854.15 : x
  2. Step 2: Convert to fraction form
    615,251.85/922,877.78 = 577,854.15/x
  3. Step 3: Cross multiply
    615,251.85x = 922,877.78 × 577,854.15
  4. Step 4: Simplify right side
    615,251.85x = 533,288,752,226.52
  5. Step 5: Solve for x
    x = 533,288,752,226.52/615,251.85
  6. Step 6: Final answer
    x = 866,781.23

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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.