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Finding the Fourth Proportional to 392,098.76, 587,910.90 and 175,917.90

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Solution

The fourth proportional to 392,098.76, 587,910.90 and 175,917.90 is: 263,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,098.76 : 587,910.90 = 175,917.90 : x
  2. Step 2: Convert to fraction form
    392,098.76/587,910.90 = 175,917.90/x
  3. Step 3: Cross multiply
    392,098.76x = 587,910.90 × 175,917.90
  4. Step 4: Simplify right side
    392,098.76x = 103,424,050,915.11
  5. Step 5: Solve for x
    x = 103,424,050,915.11/392,098.76
  6. Step 6: Final answer
    x = 263,770.41

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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.