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Finding the Fourth Proportional to 324,131.00, 447,325.52 and 178,964.78

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Solution

The fourth proportional to 324,131.00, 447,325.52 and 178,964.78 is: 246,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,131.00 : 447,325.52 = 178,964.78 : x
  2. Step 2: Convert to fraction form
    324,131.00/447,325.52 = 178,964.78/x
  3. Step 3: Cross multiply
    324,131.00x = 447,325.52 × 178,964.78
  4. Step 4: Simplify right side
    324,131.00x = 80,055,510,143.73
  5. Step 5: Solve for x
    x = 80,055,510,143.73/324,131.00
  6. Step 6: Final answer
    x = 246,985.05

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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.