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Finding the Fourth Proportional to 482,121.96, 665,283.54 and 267,243.74

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Solution

The fourth proportional to 482,121.96, 665,283.54 and 267,243.74 is: 368,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,121.96 : 665,283.54 = 267,243.74 : x
  2. Step 2: Convert to fraction form
    482,121.96/665,283.54 = 267,243.74/x
  3. Step 3: Cross multiply
    482,121.96x = 665,283.54 × 267,243.74
  4. Step 4: Simplify right side
    482,121.96x = 177,792,861,560.60
  5. Step 5: Solve for x
    x = 177,792,861,560.60/482,121.96
  6. Step 6: Final answer
    x = 368,771.55

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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.