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Finding the Fourth Proportional to 271,718.40, 404,761.92 and 267,247.20

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Solution

The fourth proportional to 271,718.40, 404,761.92 and 267,247.20 is: 398,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,718.40 : 404,761.92 = 267,247.20 : x
  2. Step 2: Convert to fraction form
    271,718.40/404,761.92 = 267,247.20/x
  3. Step 3: Cross multiply
    271,718.40x = 404,761.92 × 267,247.20
  4. Step 4: Simplify right side
    271,718.40x = 108,171,489,786.62
  5. Step 5: Solve for x
    x = 108,171,489,786.62/271,718.40
  6. Step 6: Final answer
    x = 398,101.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.