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Finding the Third Proportional to 256,267 and 550,424

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Solution

The third proportional to 256,267 and 550,424 is: 1,182,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,267 : 550,424 = 550,424 : x
  2. Step 2: Convert to fraction form
    256,267/550,424 = 550,424/x
  3. Step 3: Cross multiply
    256,267x = 550,424 × 550,424
  4. Step 4: Simplify right side
    256,267x = 302,966,579,776
  5. Step 5: Solve for x
    x = 302,966,579,776/256,267
  6. Step 6: Final answer
    x = 1,182,230.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.