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Finding the Fourth Proportional to 322,810.56, 445,456.80 and 179,560.80

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Solution

The fourth proportional to 322,810.56, 445,456.80 and 179,560.80 is: 247,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,810.56 : 445,456.80 = 179,560.80 : x
  2. Step 2: Convert to fraction form
    322,810.56/445,456.80 = 179,560.80/x
  3. Step 3: Cross multiply
    322,810.56x = 445,456.80 × 179,560.80
  4. Step 4: Simplify right side
    322,810.56x = 79,986,579,373.44
  5. Step 5: Solve for x
    x = 79,986,579,373.44/322,810.56
  6. Step 6: Final answer
    x = 247,781.79

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1.5x scale

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.