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Finding the Fourth Proportional to 354,738.80, 532,108.20 and 344,897.30

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Solution

The fourth proportional to 354,738.80, 532,108.20 and 344,897.30 is: 517,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,738.80 : 532,108.20 = 344,897.30 : x
  2. Step 2: Convert to fraction form
    354,738.80/532,108.20 = 344,897.30/x
  3. Step 3: Cross multiply
    354,738.80x = 532,108.20 × 344,897.30
  4. Step 4: Simplify right side
    354,738.80x = 183,522,681,487.86
  5. Step 5: Solve for x
    x = 183,522,681,487.86/354,738.80
  6. Step 6: Final answer
    x = 517,345.95

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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.