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Finding the Fourth Proportional to 432,416.53, 647,363.69 and 251,951.10

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Solution

The fourth proportional to 432,416.53, 647,363.69 and 251,951.10 is: 377,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,416.53 : 647,363.69 = 251,951.10 : x
  2. Step 2: Convert to fraction form
    432,416.53/647,363.69 = 251,951.10/x
  3. Step 3: Cross multiply
    432,416.53x = 647,363.69 × 251,951.10
  4. Step 4: Simplify right side
    432,416.53x = 163,103,993,795.56
  5. Step 5: Solve for x
    x = 163,103,993,795.56/432,416.53
  6. Step 6: Final answer
    x = 377,191.86

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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.