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Finding the Fourth Proportional to 330,523.74, 456,123.15 and 179,620.74

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Solution

The fourth proportional to 330,523.74, 456,123.15 and 179,620.74 is: 247,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,523.74 : 456,123.15 = 179,620.74 : x
  2. Step 2: Convert to fraction form
    330,523.74/456,123.15 = 179,620.74/x
  3. Step 3: Cross multiply
    330,523.74x = 456,123.15 × 179,620.74
  4. Step 4: Simplify right side
    330,523.74x = 81,929,177,734.13
  5. Step 5: Solve for x
    x = 81,929,177,734.13/330,523.74
  6. Step 6: Final answer
    x = 247,876.83

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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.