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Finding the Third Proportional to 317,272 and 467,136

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Solution

The third proportional to 317,272 and 467,136 is: 687,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,272 : 467,136 = 467,136 : x
  2. Step 2: Convert to fraction form
    317,272/467,136 = 467,136/x
  3. Step 3: Cross multiply
    317,272x = 467,136 × 467,136
  4. Step 4: Simplify right side
    317,272x = 218,216,042,496
  5. Step 5: Solve for x
    x = 218,216,042,496/317,272
  6. Step 6: Final answer
    x = 687,788.53

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.