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Finding the Fourth Proportional to 231,711.60, 324,862.80 and 231,711.60

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Solution

The fourth proportional to 231,711.60, 324,862.80 and 231,711.60 is: 324,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,711.60 : 324,862.80 = 231,711.60 : x
  2. Step 2: Convert to fraction form
    231,711.60/324,862.80 = 231,711.60/x
  3. Step 3: Cross multiply
    231,711.60x = 324,862.80 × 231,711.60
  4. Step 4: Simplify right side
    231,711.60x = 75,274,479,168.48
  5. Step 5: Solve for x
    x = 75,274,479,168.48/231,711.60
  6. Step 6: Final answer
    x = 324,862.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.