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Finding the Fourth Proportional to 396,484.38, 547,156.59 and 224,402.34

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Solution

The fourth proportional to 396,484.38, 547,156.59 and 224,402.34 is: 309,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,484.38 : 547,156.59 = 224,402.34 : x
  2. Step 2: Convert to fraction form
    396,484.38/547,156.59 = 224,402.34/x
  3. Step 3: Cross multiply
    396,484.38x = 547,156.59 × 224,402.34
  4. Step 4: Simplify right side
    396,484.38x = 122,783,219,142.42
  5. Step 5: Solve for x
    x = 122,783,219,142.42/396,484.38
  6. Step 6: Final answer
    x = 309,679.84

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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.