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Finding the Fourth Proportional to 391,999.44, 587,259.24 and 231,596.76

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Solution

The fourth proportional to 391,999.44, 587,259.24 and 231,596.76 is: 346,957.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,999.44 : 587,259.24 = 231,596.76 : x
  2. Step 2: Convert to fraction form
    391,999.44/587,259.24 = 231,596.76/x
  3. Step 3: Cross multiply
    391,999.44x = 587,259.24 × 231,596.76
  4. Step 4: Simplify right side
    391,999.44x = 136,007,337,264.06
  5. Step 5: Solve for x
    x = 136,007,337,264.06/391,999.44
  6. Step 6: Final answer
    x = 346,957.99

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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.