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Finding the Third Proportional to 215,555.44 and 326,315.25

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Solution

The third proportional to 215,555.44 and 326,315.25 is: 493,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,555.44 : 326,315.25 = 326,315.25 : x
  2. Step 2: Convert to fraction form
    215,555.44/326,315.25 = 326,315.25/x
  3. Step 3: Cross multiply
    215,555.44x = 326,315.25 × 326,315.25
  4. Step 4: Simplify right side
    215,555.44x = 106,481,642,382.56
  5. Step 5: Solve for x
    x = 106,481,642,382.56/215,555.44
  6. Step 6: Final answer
    x = 493,987.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.