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Finding the Fourth Proportional to 394,787.98, 592,407.69 and 167,065.66

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Solution

The fourth proportional to 394,787.98, 592,407.69 and 167,065.66 is: 250,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,787.98 : 592,407.69 = 167,065.66 : x
  2. Step 2: Convert to fraction form
    394,787.98/592,407.69 = 167,065.66/x
  3. Step 3: Cross multiply
    394,787.98x = 592,407.69 × 167,065.66
  4. Step 4: Simplify right side
    394,787.98x = 98,970,981,718.93
  5. Step 5: Solve for x
    x = 98,970,981,718.93/394,787.98
  6. Step 6: Final answer
    x = 250,694.01

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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.