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Finding the Third Proportional to 319,272 and 464,868

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Solution

The third proportional to 319,272 and 464,868 is: 676,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,272 : 464,868 = 464,868 : x
  2. Step 2: Convert to fraction form
    319,272/464,868 = 464,868/x
  3. Step 3: Cross multiply
    319,272x = 464,868 × 464,868
  4. Step 4: Simplify right side
    319,272x = 216,102,257,424
  5. Step 5: Solve for x
    x = 216,102,257,424/319,272
  6. Step 6: Final answer
    x = 676,859.41

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.