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Finding the Fourth Proportional to 591,680.70, 886,937.85 and 291,915.90

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Solution

The fourth proportional to 591,680.70, 886,937.85 and 291,915.90 is: 437,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,680.70 : 886,937.85 = 291,915.90 : x
  2. Step 2: Convert to fraction form
    591,680.70/886,937.85 = 291,915.90/x
  3. Step 3: Cross multiply
    591,680.70x = 886,937.85 × 291,915.90
  4. Step 4: Simplify right side
    591,680.70x = 258,911,260,726.82
  5. Step 5: Solve for x
    x = 258,911,260,726.82/591,680.70
  6. Step 6: Final answer
    x = 437,586.12

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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.