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Finding the Fourth Proportional to 396,326.10, 594,489.15 and 365,999.70

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Solution

The fourth proportional to 396,326.10, 594,489.15 and 365,999.70 is: 548,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,326.10 : 594,489.15 = 365,999.70 : x
  2. Step 2: Convert to fraction form
    396,326.10/594,489.15 = 365,999.70/x
  3. Step 3: Cross multiply
    396,326.10x = 594,489.15 × 365,999.70
  4. Step 4: Simplify right side
    396,326.10x = 217,582,850,553.26
  5. Step 5: Solve for x
    x = 217,582,850,553.26/396,326.10
  6. Step 6: Final answer
    x = 548,999.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.