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Finding the Third Proportional to 211,415.25 and 327,215.25

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Solution

The third proportional to 211,415.25 and 327,215.25 is: 506,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,415.25 : 327,215.25 = 327,215.25 : x
  2. Step 2: Convert to fraction form
    211,415.25/327,215.25 = 327,215.25/x
  3. Step 3: Cross multiply
    211,415.25x = 327,215.25 × 327,215.25
  4. Step 4: Simplify right side
    211,415.25x = 107,069,819,832.56
  5. Step 5: Solve for x
    x = 107,069,819,832.56/211,415.25
  6. Step 6: Final answer
    x = 506,443.22

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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.