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Finding the Third Proportional to 259,177.13 and 405,695.25

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Solution

The third proportional to 259,177.13 and 405,695.25 is: 635,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,177.13 : 405,695.25 = 405,695.25 : x
  2. Step 2: Convert to fraction form
    259,177.13/405,695.25 = 405,695.25/x
  3. Step 3: Cross multiply
    259,177.13x = 405,695.25 × 405,695.25
  4. Step 4: Simplify right side
    259,177.13x = 164,588,635,872.56
  5. Step 5: Solve for x
    x = 164,588,635,872.56/259,177.13
  6. Step 6: Final answer
    x = 635,043.07

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.