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Finding the Fourth Proportional to 396,274.38, 546,858.59 and 226,512.15

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Solution

The fourth proportional to 396,274.38, 546,858.59 and 226,512.15 is: 312,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,274.38 : 546,858.59 = 226,512.15 : x
  2. Step 2: Convert to fraction form
    396,274.38/546,858.59 = 226,512.15/x
  3. Step 3: Cross multiply
    396,274.38x = 546,858.59 × 226,512.15
  4. Step 4: Simplify right side
    396,274.38x = 123,870,113,834.31
  5. Step 5: Solve for x
    x = 123,870,113,834.31/396,274.38
  6. Step 6: Final answer
    x = 312,586.73

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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.