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Finding the Third Proportional to 259,213.50 and 539,124.75

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Solution

The third proportional to 259,213.50 and 539,124.75 is: 1,121,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,213.50 : 539,124.75 = 539,124.75 : x
  2. Step 2: Convert to fraction form
    259,213.50/539,124.75 = 539,124.75/x
  3. Step 3: Cross multiply
    259,213.50x = 539,124.75 × 539,124.75
  4. Step 4: Simplify right side
    259,213.50x = 290,655,496,062.56
  5. Step 5: Solve for x
    x = 290,655,496,062.56/259,213.50
  6. Step 6: Final answer
    x = 1,121,297.68

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.