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Finding the Fourth Proportional to 321,859.56, 444,158.34 and 178,617.48

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Solution

The fourth proportional to 321,859.56, 444,158.34 and 178,617.48 is: 246,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,859.56 : 444,158.34 = 178,617.48 : x
  2. Step 2: Convert to fraction form
    321,859.56/444,158.34 = 178,617.48/x
  3. Step 3: Cross multiply
    321,859.56x = 444,158.34 × 178,617.48
  4. Step 4: Simplify right side
    321,859.56x = 79,334,443,411.78
  5. Step 5: Solve for x
    x = 79,334,443,411.78/321,859.56
  6. Step 6: Final answer
    x = 246,487.76

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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.