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Finding the Fourth Proportional to 396,154.32, 546,730.32 and 226,355.52

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Solution

The fourth proportional to 396,154.32, 546,730.32 and 226,355.52 is: 312,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,154.32 : 546,730.32 = 226,355.52 : x
  2. Step 2: Convert to fraction form
    396,154.32/546,730.32 = 226,355.52/x
  3. Step 3: Cross multiply
    396,154.32x = 546,730.32 × 226,355.52
  4. Step 4: Simplify right side
    396,154.32x = 123,755,425,883.37
  5. Step 5: Solve for x
    x = 123,755,425,883.37/396,154.32
  6. Step 6: Final answer
    x = 312,391.96

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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.