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Finding the Fourth Proportional to 422,847.48, 634,238.13 and 119,229.38

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Solution

The fourth proportional to 422,847.48, 634,238.13 and 119,229.38 is: 178,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,847.48 : 634,238.13 = 119,229.38 : x
  2. Step 2: Convert to fraction form
    422,847.48/634,238.13 = 119,229.38/x
  3. Step 3: Cross multiply
    422,847.48x = 634,238.13 × 119,229.38
  4. Step 4: Simplify right side
    422,847.48x = 75,619,815,841.07
  5. Step 5: Solve for x
    x = 75,619,815,841.07/422,847.48
  6. Step 6: Final answer
    x = 178,834.73

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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.