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Finding the Fourth Proportional to 463,141.80, 694,712.70 and 458,226.60

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Solution

The fourth proportional to 463,141.80, 694,712.70 and 458,226.60 is: 687,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,141.80 : 694,712.70 = 458,226.60 : x
  2. Step 2: Convert to fraction form
    463,141.80/694,712.70 = 458,226.60/x
  3. Step 3: Cross multiply
    463,141.80x = 694,712.70 × 458,226.60
  4. Step 4: Simplify right side
    463,141.80x = 318,335,838,497.82
  5. Step 5: Solve for x
    x = 318,335,838,497.82/463,141.80
  6. Step 6: Final answer
    x = 687,339.90

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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.