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Finding the Fourth Proportional to 324,633.70, 447,996.76 and 181,399.78

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Solution

The fourth proportional to 324,633.70, 447,996.76 and 181,399.78 is: 250,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,633.70 : 447,996.76 = 181,399.78 : x
  2. Step 2: Convert to fraction form
    324,633.70/447,996.76 = 181,399.78/x
  3. Step 3: Cross multiply
    324,633.70x = 447,996.76 × 181,399.78
  4. Step 4: Simplify right side
    324,633.70x = 81,266,513,704.71
  5. Step 5: Solve for x
    x = 81,266,513,704.71/324,633.70
  6. Step 6: Final answer
    x = 250,332.96

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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.