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Finding the Fourth Proportional to 396,118.35, 546,590.79 and 224,059.77

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Solution

The fourth proportional to 396,118.35, 546,590.79 and 224,059.77 is: 309,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,118.35 : 546,590.79 = 224,059.77 : x
  2. Step 2: Convert to fraction form
    396,118.35/546,590.79 = 224,059.77/x
  3. Step 3: Cross multiply
    396,118.35x = 546,590.79 × 224,059.77
  4. Step 4: Simplify right side
    396,118.35x = 122,469,006,691.52
  5. Step 5: Solve for x
    x = 122,469,006,691.52/396,118.35
  6. Step 6: Final answer
    x = 309,172.77

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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.