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Finding the Third Proportional to 349,228 and 517,296

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Solution

The third proportional to 349,228 and 517,296 is: 766,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,228 : 517,296 = 517,296 : x
  2. Step 2: Convert to fraction form
    349,228/517,296 = 517,296/x
  3. Step 3: Cross multiply
    349,228x = 517,296 × 517,296
  4. Step 4: Simplify right side
    349,228x = 267,595,151,616
  5. Step 5: Solve for x
    x = 267,595,151,616/349,228
  6. Step 6: Final answer
    x = 766,247.70

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.