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Finding the Fourth Proportional to 280,195.88, 386,670.31 and 179,593.88

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Solution

The fourth proportional to 280,195.88, 386,670.31 and 179,593.88 is: 247,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,195.88 : 386,670.31 = 179,593.88 : x
  2. Step 2: Convert to fraction form
    280,195.88/386,670.31 = 179,593.88/x
  3. Step 3: Cross multiply
    280,195.88x = 386,670.31 × 179,593.88
  4. Step 4: Simplify right side
    280,195.88x = 69,443,618,871.37
  5. Step 5: Solve for x
    x = 69,443,618,871.37/280,195.88
  6. Step 6: Final answer
    x = 247,839.55

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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.