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Finding the Fourth Proportional to 332,077.20, 498,115.80 and 132,428.40

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Solution

The fourth proportional to 332,077.20, 498,115.80 and 132,428.40 is: 198,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,077.20 : 498,115.80 = 132,428.40 : x
  2. Step 2: Convert to fraction form
    332,077.20/498,115.80 = 132,428.40/x
  3. Step 3: Cross multiply
    332,077.20x = 498,115.80 × 132,428.40
  4. Step 4: Simplify right side
    332,077.20x = 65,964,678,408.72
  5. Step 5: Solve for x
    x = 65,964,678,408.72/332,077.20
  6. Step 6: Final answer
    x = 198,642.60

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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.