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Finding the Fourth Proportional to 324,393.55, 447,701.18 and 269,849.43

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Solution

The fourth proportional to 324,393.55, 447,701.18 and 269,849.43 is: 372,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,393.55 : 447,701.18 = 269,849.43 : x
  2. Step 2: Convert to fraction form
    324,393.55/447,701.18 = 269,849.43/x
  3. Step 3: Cross multiply
    324,393.55x = 447,701.18 × 269,849.43
  4. Step 4: Simplify right side
    324,393.55x = 120,811,906,884.08
  5. Step 5: Solve for x
    x = 120,811,906,884.08/324,393.55
  6. Step 6: Final answer
    x = 372,423.89

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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.