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Finding the Fourth Proportional to 392,658.98, 588,918.35 and 104,472.27

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Solution

The fourth proportional to 392,658.98, 588,918.35 and 104,472.27 is: 156,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,658.98 : 588,918.35 = 104,472.27 : x
  2. Step 2: Convert to fraction form
    392,658.98/588,918.35 = 104,472.27/x
  3. Step 3: Cross multiply
    392,658.98x = 588,918.35 × 104,472.27
  4. Step 4: Simplify right side
    392,658.98x = 61,525,639,315.08
  5. Step 5: Solve for x
    x = 61,525,639,315.08/392,658.98
  6. Step 6: Final answer
    x = 156,689.76

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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.