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Finding the Fourth Proportional to 482,091.89, 722,425.10 and 455,132.39

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Solution

The fourth proportional to 482,091.89, 722,425.10 and 455,132.39 is: 682,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,091.89 : 722,425.10 = 455,132.39 : x
  2. Step 2: Convert to fraction form
    482,091.89/722,425.10 = 455,132.39/x
  3. Step 3: Cross multiply
    482,091.89x = 722,425.10 × 455,132.39
  4. Step 4: Simplify right side
    482,091.89x = 328,799,056,471.20
  5. Step 5: Solve for x
    x = 328,799,056,471.20/482,091.89
  6. Step 6: Final answer
    x = 682,025.70

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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.