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Finding the Fourth Proportional to 482,215.88, 665,495.53 and 267,397.80

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Solution

The fourth proportional to 482,215.88, 665,495.53 and 267,397.80 is: 369,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,215.88 : 665,495.53 = 267,397.80 : x
  2. Step 2: Convert to fraction form
    482,215.88/665,495.53 = 267,397.80/x
  3. Step 3: Cross multiply
    482,215.88x = 665,495.53 × 267,397.80
  4. Step 4: Simplify right side
    482,215.88x = 177,952,039,294.85
  5. Step 5: Solve for x
    x = 177,952,039,294.85/482,215.88
  6. Step 6: Final answer
    x = 369,029.82

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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.