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Finding the Fourth Proportional to 499,046.67, 688,686.17 and 272,692.17

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Solution

The fourth proportional to 499,046.67, 688,686.17 and 272,692.17 is: 376,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,046.67 : 688,686.17 = 272,692.17 : x
  2. Step 2: Convert to fraction form
    499,046.67/688,686.17 = 272,692.17/x
  3. Step 3: Cross multiply
    499,046.67x = 688,686.17 × 272,692.17
  4. Step 4: Simplify right side
    499,046.67x = 187,799,324,782.83
  5. Step 5: Solve for x
    x = 187,799,324,782.83/499,046.67
  6. Step 6: Final answer
    x = 376,316.16

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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.