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Finding the Third Proportional to 256,198.50 and 550,305

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Solution

The third proportional to 256,198.50 and 550,305 is: 1,182,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,198.50 : 550,305 = 550,305 : x
  2. Step 2: Convert to fraction form
    256,198.50/550,305 = 550,305/x
  3. Step 3: Cross multiply
    256,198.50x = 550,305 × 550,305
  4. Step 4: Simplify right side
    256,198.50x = 302,835,593,025
  5. Step 5: Solve for x
    x = 302,835,593,025/256,198.50
  6. Step 6: Final answer
    x = 1,182,035.00

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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.