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Finding the Third Proportional to 220,388.25 and 327,342

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Solution

The third proportional to 220,388.25 and 327,342 is: 486,200.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,388.25 : 327,342 = 327,342 : x
  2. Step 2: Convert to fraction form
    220,388.25/327,342 = 327,342/x
  3. Step 3: Cross multiply
    220,388.25x = 327,342 × 327,342
  4. Step 4: Simplify right side
    220,388.25x = 107,152,784,964
  5. Step 5: Solve for x
    x = 107,152,784,964/220,388.25
  6. Step 6: Final answer
    x = 486,200.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.