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Finding the Fourth Proportional to 482,121.91, 665,283.51 and 267,243.70

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Solution

The fourth proportional to 482,121.91, 665,283.51 and 267,243.70 is: 368,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,121.91 : 665,283.51 = 267,243.70 : x
  2. Step 2: Convert to fraction form
    482,121.91/665,283.51 = 267,243.70/x
  3. Step 3: Cross multiply
    482,121.91x = 665,283.51 × 267,243.70
  4. Step 4: Simplify right side
    482,121.91x = 177,792,826,761.39
  5. Step 5: Solve for x
    x = 177,792,826,761.39/482,121.91
  6. Step 6: Final answer
    x = 368,771.51

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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.