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Finding the Fourth Proportional to 479,708.25, 661,993.08 and 264,843.69

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Solution

The fourth proportional to 479,708.25, 661,993.08 and 264,843.69 is: 365,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,708.25 : 661,993.08 = 264,843.69 : x
  2. Step 2: Convert to fraction form
    479,708.25/661,993.08 = 264,843.69/x
  3. Step 3: Cross multiply
    479,708.25x = 661,993.08 × 264,843.69
  4. Step 4: Simplify right side
    479,708.25x = 175,324,690,061.67
  5. Step 5: Solve for x
    x = 175,324,690,061.67/479,708.25
  6. Step 6: Final answer
    x = 365,481.92

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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.