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Finding the Fourth Proportional to 329,665.80, 454,997.04 and 193,699.71

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Solution

The fourth proportional to 329,665.80, 454,997.04 and 193,699.71 is: 267,339.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,665.80 : 454,997.04 = 193,699.71 : x
  2. Step 2: Convert to fraction form
    329,665.80/454,997.04 = 193,699.71/x
  3. Step 3: Cross multiply
    329,665.80x = 454,997.04 × 193,699.71
  4. Step 4: Simplify right side
    329,665.80x = 88,132,794,698.86
  5. Step 5: Solve for x
    x = 88,132,794,698.86/329,665.80
  6. Step 6: Final answer
    x = 267,339.82

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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.