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Finding the Fourth Proportional to 482,456.88, 665,831.28 and 267,666

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Solution

The fourth proportional to 482,456.88, 665,831.28 and 267,666 is: 369,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,456.88 : 665,831.28 = 267,666 : x
  2. Step 2: Convert to fraction form
    482,456.88/665,831.28 = 267,666/x
  3. Step 3: Cross multiply
    482,456.88x = 665,831.28 × 267,666
  4. Step 4: Simplify right side
    482,456.88x = 178,220,395,392.48
  5. Step 5: Solve for x
    x = 178,220,395,392.48/482,456.88
  6. Step 6: Final answer
    x = 369,401.71

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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.