Home / 319,581.71-441,182.42-198,761.94

Finding the Fourth Proportional to 319,581.71, 441,182.42 and 198,761.94

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Solution

The fourth proportional to 319,581.71, 441,182.42 and 198,761.94 is: 274,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,581.71 : 441,182.42 = 198,761.94 : x
  2. Step 2: Convert to fraction form
    319,581.71/441,182.42 = 198,761.94/x
  3. Step 3: Cross multiply
    319,581.71x = 441,182.42 × 198,761.94
  4. Step 4: Simplify right side
    319,581.71x = 87,690,274,190.00
  5. Step 5: Solve for x
    x = 87,690,274,190.00/319,581.71
  6. Step 6: Final answer
    x = 274,390.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.