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Finding the Fourth Proportional to 394,658.30, 591,712.86 and 169,951.34

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Solution

The fourth proportional to 394,658.30, 591,712.86 and 169,951.34 is: 254,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,658.30 : 591,712.86 = 169,951.34 : x
  2. Step 2: Convert to fraction form
    394,658.30/591,712.86 = 169,951.34/x
  3. Step 3: Cross multiply
    394,658.30x = 591,712.86 × 169,951.34
  4. Step 4: Simplify right side
    394,658.30x = 100,562,393,452.23
  5. Step 5: Solve for x
    x = 100,562,393,452.23/394,658.30
  6. Step 6: Final answer
    x = 254,808.76

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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.