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Finding the Fourth Proportional to 482,204.61, 721,888.01 and 321,882.89

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Solution

The fourth proportional to 482,204.61, 721,888.01 and 321,882.89 is: 481,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,204.61 : 721,888.01 = 321,882.89 : x
  2. Step 2: Convert to fraction form
    482,204.61/721,888.01 = 321,882.89/x
  3. Step 3: Cross multiply
    482,204.61x = 721,888.01 × 321,882.89
  4. Step 4: Simplify right side
    482,204.61x = 232,363,398,915.15
  5. Step 5: Solve for x
    x = 232,363,398,915.15/482,204.61
  6. Step 6: Final answer
    x = 481,877.18

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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.