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Finding the Fourth Proportional to 321,234.96, 443,297.64 and 177,994.56

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Solution

The fourth proportional to 321,234.96, 443,297.64 and 177,994.56 is: 245,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,234.96 : 443,297.64 = 177,994.56 : x
  2. Step 2: Convert to fraction form
    321,234.96/443,297.64 = 177,994.56/x
  3. Step 3: Cross multiply
    321,234.96x = 443,297.64 × 177,994.56
  4. Step 4: Simplify right side
    321,234.96x = 78,904,568,380.84
  5. Step 5: Solve for x
    x = 78,904,568,380.84/321,234.96
  6. Step 6: Final answer
    x = 245,628.83

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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.