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Finding the Fourth Proportional to 615,127.40, 922,691.10 and 455,695.10

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Solution

The fourth proportional to 615,127.40, 922,691.10 and 455,695.10 is: 683,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,127.40 : 922,691.10 = 455,695.10 : x
  2. Step 2: Convert to fraction form
    615,127.40/922,691.10 = 455,695.10/x
  3. Step 3: Cross multiply
    615,127.40x = 922,691.10 × 455,695.10
  4. Step 4: Simplify right side
    615,127.40x = 420,465,813,083.61
  5. Step 5: Solve for x
    x = 420,465,813,083.61/615,127.40
  6. Step 6: Final answer
    x = 683,542.65

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Similar ratio
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1.5x scale

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.