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Finding the Fourth Proportional to 391,456.34, 587,184.50 and 95,968.34

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Solution

The fourth proportional to 391,456.34, 587,184.50 and 95,968.34 is: 143,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,456.34 : 587,184.50 = 95,968.34 : x
  2. Step 2: Convert to fraction form
    391,456.34/587,184.50 = 95,968.34/x
  3. Step 3: Cross multiply
    391,456.34x = 587,184.50 × 95,968.34
  4. Step 4: Simplify right side
    391,456.34x = 56,351,119,728.17
  5. Step 5: Solve for x
    x = 56,351,119,728.17/391,456.34
  6. Step 6: Final answer
    x = 143,952.50

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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.