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Finding the Fourth Proportional to 478,584.41, 717,697.86 and 158,677.61

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Solution

The fourth proportional to 478,584.41, 717,697.86 and 158,677.61 is: 237,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,584.41 : 717,697.86 = 158,677.61 : x
  2. Step 2: Convert to fraction form
    478,584.41/717,697.86 = 158,677.61/x
  3. Step 3: Cross multiply
    478,584.41x = 717,697.86 × 158,677.61
  4. Step 4: Simplify right side
    478,584.41x = 113,882,581,126.92
  5. Step 5: Solve for x
    x = 113,882,581,126.92/478,584.41
  6. Step 6: Final answer
    x = 237,957.15

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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.