Home / 394,214.78-591,743.10-169,686.38

Finding the Fourth Proportional to 394,214.78, 591,743.10 and 169,686.38

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Solution

The fourth proportional to 394,214.78, 591,743.10 and 169,686.38 is: 254,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,214.78 : 591,743.10 = 169,686.38 : x
  2. Step 2: Convert to fraction form
    394,214.78/591,743.10 = 169,686.38/x
  3. Step 3: Cross multiply
    394,214.78x = 591,743.10 × 169,686.38
  4. Step 4: Simplify right side
    394,214.78x = 100,410,744,528.98
  5. Step 5: Solve for x
    x = 100,410,744,528.98/394,214.78
  6. Step 6: Final answer
    x = 254,710.76

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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.