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Finding the Fourth Proportional to 394,305.84, 591,879.78 and 169,777.44

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Solution

The fourth proportional to 394,305.84, 591,879.78 and 169,777.44 is: 254,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,305.84 : 591,879.78 = 169,777.44 : x
  2. Step 2: Convert to fraction form
    394,305.84/591,879.78 = 169,777.44/x
  3. Step 3: Cross multiply
    394,305.84x = 591,879.78 × 169,777.44
  4. Step 4: Simplify right side
    394,305.84x = 100,487,833,836.16
  5. Step 5: Solve for x
    x = 100,487,833,836.16/394,305.84
  6. Step 6: Final answer
    x = 254,847.44

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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.