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Finding the Fourth Proportional to 552,863.12, 763,186.50 and 371,680.13

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Solution

The fourth proportional to 552,863.12, 763,186.50 and 371,680.13 is: 513,076.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,863.12 : 763,186.50 = 371,680.13 : x
  2. Step 2: Convert to fraction form
    552,863.12/763,186.50 = 371,680.13/x
  3. Step 3: Cross multiply
    552,863.12x = 763,186.50 × 371,680.13
  4. Step 4: Simplify right side
    552,863.12x = 283,661,253,718.31
  5. Step 5: Solve for x
    x = 283,661,253,718.31/552,863.12
  6. Step 6: Final answer
    x = 513,076.83

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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.