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Finding the Fourth Proportional to 465,937.92, 642,839.66 and 379,748.70

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Solution

The fourth proportional to 465,937.92, 642,839.66 and 379,748.70 is: 523,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,937.92 : 642,839.66 = 379,748.70 : x
  2. Step 2: Convert to fraction form
    465,937.92/642,839.66 = 379,748.70/x
  3. Step 3: Cross multiply
    465,937.92x = 642,839.66 × 379,748.70
  4. Step 4: Simplify right side
    465,937.92x = 244,117,525,193.44
  5. Step 5: Solve for x
    x = 244,117,525,193.44/465,937.92
  6. Step 6: Final answer
    x = 523,927.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.