Home / 396,905.92-547,727.92-215,616.40

Finding the Fourth Proportional to 396,905.92, 547,727.92 and 215,616.40

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Solution

The fourth proportional to 396,905.92, 547,727.92 and 215,616.40 is: 297,549.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,905.92 : 547,727.92 = 215,616.40 : x
  2. Step 2: Convert to fraction form
    396,905.92/547,727.92 = 215,616.40/x
  3. Step 3: Cross multiply
    396,905.92x = 547,727.92 × 215,616.40
  4. Step 4: Simplify right side
    396,905.92x = 118,099,122,289.89
  5. Step 5: Solve for x
    x = 118,099,122,289.89/396,905.92
  6. Step 6: Final answer
    x = 297,549.41

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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.