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Finding the Fourth Proportional to 482,121.50, 665,282.94 and 267,243.29

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Solution

The fourth proportional to 482,121.50, 665,282.94 and 267,243.29 is: 368,770.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,121.50 : 665,282.94 = 267,243.29 : x
  2. Step 2: Convert to fraction form
    482,121.50/665,282.94 = 267,243.29/x
  3. Step 3: Cross multiply
    482,121.50x = 665,282.94 × 267,243.29
  4. Step 4: Simplify right side
    482,121.50x = 177,792,401,666.47
  5. Step 5: Solve for x
    x = 177,792,401,666.47/482,121.50
  6. Step 6: Final answer
    x = 368,770.95

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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.