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Finding the Fourth Proportional to 323,496.60, 485,180.10 and 155,016.60

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Solution

The fourth proportional to 323,496.60, 485,180.10 and 155,016.60 is: 232,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,496.60 : 485,180.10 = 155,016.60 : x
  2. Step 2: Convert to fraction form
    323,496.60/485,180.10 = 155,016.60/x
  3. Step 3: Cross multiply
    323,496.60x = 485,180.10 × 155,016.60
  4. Step 4: Simplify right side
    323,496.60x = 75,210,969,489.66
  5. Step 5: Solve for x
    x = 75,210,969,489.66/323,496.60
  6. Step 6: Final answer
    x = 232,493.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.