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Finding the Fourth Proportional to 311,078.80, 466,704.60 and 133,670.80

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Solution

The fourth proportional to 311,078.80, 466,704.60 and 133,670.80 is: 200,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,078.80 : 466,704.60 = 133,670.80 : x
  2. Step 2: Convert to fraction form
    311,078.80/466,704.60 = 133,670.80/x
  3. Step 3: Cross multiply
    311,078.80x = 466,704.60 × 133,670.80
  4. Step 4: Simplify right side
    311,078.80x = 62,384,777,245.68
  5. Step 5: Solve for x
    x = 62,384,777,245.68/311,078.80
  6. Step 6: Final answer
    x = 200,543.33

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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.