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Finding the Fourth Proportional to 396,453.76, 547,105.96 and 224,368.60

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Solution

The fourth proportional to 396,453.76, 547,105.96 and 224,368.60 is: 309,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,453.76 : 547,105.96 = 224,368.60 : x
  2. Step 2: Convert to fraction form
    396,453.76/547,105.96 = 224,368.60/x
  3. Step 3: Cross multiply
    396,453.76x = 547,105.96 × 224,368.60
  4. Step 4: Simplify right side
    396,453.76x = 122,753,398,296.86
  5. Step 5: Solve for x
    x = 122,753,398,296.86/396,453.76
  6. Step 6: Final answer
    x = 309,628.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.