Home / 396,545.78-547,233.86-215,257.83

Finding the Fourth Proportional to 396,545.78, 547,233.86 and 215,257.83

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Solution

The fourth proportional to 396,545.78, 547,233.86 and 215,257.83 is: 297,056.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,545.78 : 547,233.86 = 215,257.83 : x
  2. Step 2: Convert to fraction form
    396,545.78/547,233.86 = 215,257.83/x
  3. Step 3: Cross multiply
    396,545.78x = 547,233.86 × 215,257.83
  4. Step 4: Simplify right side
    396,545.78x = 117,796,370,469.96
  5. Step 5: Solve for x
    x = 117,796,370,469.96/396,545.78
  6. Step 6: Final answer
    x = 297,056.17

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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.