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Finding the Third Proportional to 228,615.75 and 339,612.75

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Solution

The third proportional to 228,615.75 and 339,612.75 is: 504,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,615.75 : 339,612.75 = 339,612.75 : x
  2. Step 2: Convert to fraction form
    228,615.75/339,612.75 = 339,612.75/x
  3. Step 3: Cross multiply
    228,615.75x = 339,612.75 × 339,612.75
  4. Step 4: Simplify right side
    228,615.75x = 115,336,819,962.56
  5. Step 5: Solve for x
    x = 115,336,819,962.56/228,615.75
  6. Step 6: Final answer
    x = 504,500.76

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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.