Home / 437,981.80-656,608.20-185,456.20

Finding the Fourth Proportional to 437,981.80, 656,608.20 and 185,456.20

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Solution

The fourth proportional to 437,981.80, 656,608.20 and 185,456.20 is: 278,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,981.80 : 656,608.20 = 185,456.20 : x
  2. Step 2: Convert to fraction form
    437,981.80/656,608.20 = 185,456.20/x
  3. Step 3: Cross multiply
    437,981.80x = 656,608.20 × 185,456.20
  4. Step 4: Simplify right side
    437,981.80x = 121,772,061,660.84
  5. Step 5: Solve for x
    x = 121,772,061,660.84/437,981.80
  6. Step 6: Final answer
    x = 278,029.96

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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.