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Finding the Fourth Proportional to 392,337.70, 588,506.55 and 297,859.30

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Solution

The fourth proportional to 392,337.70, 588,506.55 and 297,859.30 is: 446,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,337.70 : 588,506.55 = 297,859.30 : x
  2. Step 2: Convert to fraction form
    392,337.70/588,506.55 = 297,859.30/x
  3. Step 3: Cross multiply
    392,337.70x = 588,506.55 × 297,859.30
  4. Step 4: Simplify right side
    392,337.70x = 175,292,149,028.42
  5. Step 5: Solve for x
    x = 175,292,149,028.42/392,337.70
  6. Step 6: Final answer
    x = 446,788.95

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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.