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Finding the Fourth Proportional to 792,481, 1,188,717.39 and 193,445.30

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Solution

The fourth proportional to 792,481, 1,188,717.39 and 193,445.30 is: 290,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,481 : 1,188,717.39 = 193,445.30 : x
  2. Step 2: Convert to fraction form
    792,481/1,188,717.39 = 193,445.30/x
  3. Step 3: Cross multiply
    792,481x = 1,188,717.39 × 193,445.30
  4. Step 4: Simplify right side
    792,481x = 229,951,792,123.77
  5. Step 5: Solve for x
    x = 229,951,792,123.77/792,481
  6. Step 6: Final answer
    x = 290,166.95

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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.