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Finding the Fourth Proportional to 218,440.60, 327,660.90 and 192,196.60

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Solution

The fourth proportional to 218,440.60, 327,660.90 and 192,196.60 is: 288,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,440.60 : 327,660.90 = 192,196.60 : x
  2. Step 2: Convert to fraction form
    218,440.60/327,660.90 = 192,196.60/x
  3. Step 3: Cross multiply
    218,440.60x = 327,660.90 × 192,196.60
  4. Step 4: Simplify right side
    218,440.60x = 62,975,310,932.94
  5. Step 5: Solve for x
    x = 62,975,310,932.94/218,440.60
  6. Step 6: Final answer
    x = 288,294.90

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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.