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Finding the Fourth Proportional to 445,712.52, 615,127.46 and 254,753.32

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Solution

The fourth proportional to 445,712.52, 615,127.46 and 254,753.32 is: 351,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,712.52 : 615,127.46 = 254,753.32 : x
  2. Step 2: Convert to fraction form
    445,712.52/615,127.46 = 254,753.32/x
  3. Step 3: Cross multiply
    445,712.52x = 615,127.46 × 254,753.32
  4. Step 4: Simplify right side
    445,712.52x = 156,705,762,658.17
  5. Step 5: Solve for x
    x = 156,705,762,658.17/445,712.52
  6. Step 6: Final answer
    x = 351,584.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.