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Finding the Fourth Proportional to 412,691.68, 569,615.72 and 251,635.44

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Solution

The fourth proportional to 412,691.68, 569,615.72 and 251,635.44 is: 347,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,691.68 : 569,615.72 = 251,635.44 : x
  2. Step 2: Convert to fraction form
    412,691.68/569,615.72 = 251,635.44/x
  3. Step 3: Cross multiply
    412,691.68x = 569,615.72 × 251,635.44
  4. Step 4: Simplify right side
    412,691.68x = 143,335,502,333.12
  5. Step 5: Solve for x
    x = 143,335,502,333.12/412,691.68
  6. Step 6: Final answer
    x = 347,318.61

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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.