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Finding the Fourth Proportional to 394,488.92, 591,832.74 and 114,004.28

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Solution

The fourth proportional to 394,488.92, 591,832.74 and 114,004.28 is: 171,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,488.92 : 591,832.74 = 114,004.28 : x
  2. Step 2: Convert to fraction form
    394,488.92/591,832.74 = 114,004.28/x
  3. Step 3: Cross multiply
    394,488.92x = 591,832.74 × 114,004.28
  4. Step 4: Simplify right side
    394,488.92x = 67,471,465,404.13
  5. Step 5: Solve for x
    x = 67,471,465,404.13/394,488.92
  6. Step 6: Final answer
    x = 171,035.13

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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.