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Finding the Fourth Proportional to 386,593.75, 533,732.66 and 252,691.03

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Solution

The fourth proportional to 386,593.75, 533,732.66 and 252,691.03 is: 348,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,593.75 : 533,732.66 = 252,691.03 : x
  2. Step 2: Convert to fraction form
    386,593.75/533,732.66 = 252,691.03/x
  3. Step 3: Cross multiply
    386,593.75x = 533,732.66 × 252,691.03
  4. Step 4: Simplify right side
    386,593.75x = 134,869,455,600.04
  5. Step 5: Solve for x
    x = 134,869,455,600.04/386,593.75
  6. Step 6: Final answer
    x = 348,866.10

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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.