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Finding the Fourth Proportional to 494,079.72, 681,831.06 and 267,725.28

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Solution

The fourth proportional to 494,079.72, 681,831.06 and 267,725.28 is: 369,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,079.72 : 681,831.06 = 267,725.28 : x
  2. Step 2: Convert to fraction form
    494,079.72/681,831.06 = 267,725.28/x
  3. Step 3: Cross multiply
    494,079.72x = 681,831.06 × 267,725.28
  4. Step 4: Simplify right side
    494,079.72x = 182,543,411,451.20
  5. Step 5: Solve for x
    x = 182,543,411,451.20/494,079.72
  6. Step 6: Final answer
    x = 369,461.45

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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.