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Finding the Fourth Proportional to 331,455.20, 457,393.41 and 193,646.91

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Solution

The fourth proportional to 331,455.20, 457,393.41 and 193,646.91 is: 267,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,455.20 : 457,393.41 = 193,646.91 : x
  2. Step 2: Convert to fraction form
    331,455.20/457,393.41 = 193,646.91/x
  3. Step 3: Cross multiply
    331,455.20x = 457,393.41 × 193,646.91
  4. Step 4: Simplify right side
    331,455.20x = 88,572,820,500.86
  5. Step 5: Solve for x
    x = 88,572,820,500.86/331,455.20
  6. Step 6: Final answer
    x = 267,224.11

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1.5x scale

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.