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Finding the Fourth Proportional to 472,848.80, 707,545.20 and 348,432.80

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Solution

The fourth proportional to 472,848.80, 707,545.20 and 348,432.80 is: 521,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,848.80 : 707,545.20 = 348,432.80 : x
  2. Step 2: Convert to fraction form
    472,848.80/707,545.20 = 348,432.80/x
  3. Step 3: Cross multiply
    472,848.80x = 707,545.20 × 348,432.80
  4. Step 4: Simplify right side
    472,848.80x = 246,531,955,162.56
  5. Step 5: Solve for x
    x = 246,531,955,162.56/472,848.80
  6. Step 6: Final answer
    x = 521,375.87

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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.