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Finding the Fourth Proportional to 482,761.89, 666,218.66 and 267,915.87

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Solution

The fourth proportional to 482,761.89, 666,218.66 and 267,915.87 is: 369,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,761.89 : 666,218.66 = 267,915.87 : x
  2. Step 2: Convert to fraction form
    482,761.89/666,218.66 = 267,915.87/x
  3. Step 3: Cross multiply
    482,761.89x = 666,218.66 × 267,915.87
  4. Step 4: Simplify right side
    482,761.89x = 178,490,550,564.56
  5. Step 5: Solve for x
    x = 178,490,550,564.56/482,761.89
  6. Step 6: Final answer
    x = 369,727.92

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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.