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Finding the Fourth Proportional to 674,188.13, 928,796.49 and 469,867.66

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Solution

The fourth proportional to 674,188.13, 928,796.49 and 469,867.66 is: 647,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,188.13 : 928,796.49 = 469,867.66 : x
  2. Step 2: Convert to fraction form
    674,188.13/928,796.49 = 469,867.66/x
  3. Step 3: Cross multiply
    674,188.13x = 928,796.49 × 469,867.66
  4. Step 4: Simplify right side
    674,188.13x = 436,411,431,050.52
  5. Step 5: Solve for x
    x = 436,411,431,050.52/674,188.13
  6. Step 6: Final answer
    x = 647,314.02

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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.