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Finding the Third Proportional to 263,760.75 and 408,156.75

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Solution

The third proportional to 263,760.75 and 408,156.75 is: 631,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,760.75 : 408,156.75 = 408,156.75 : x
  2. Step 2: Convert to fraction form
    263,760.75/408,156.75 = 408,156.75/x
  3. Step 3: Cross multiply
    263,760.75x = 408,156.75 × 408,156.75
  4. Step 4: Simplify right side
    263,760.75x = 166,591,932,570.56
  5. Step 5: Solve for x
    x = 166,591,932,570.56/263,760.75
  6. Step 6: Final answer
    x = 631,602.44

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.