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Finding the Third Proportional to 256,846.50 and 409,053

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Solution

The third proportional to 256,846.50 and 409,053 is: 651,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,846.50 : 409,053 = 409,053 : x
  2. Step 2: Convert to fraction form
    256,846.50/409,053 = 409,053/x
  3. Step 3: Cross multiply
    256,846.50x = 409,053 × 409,053
  4. Step 4: Simplify right side
    256,846.50x = 167,324,356,809
  5. Step 5: Solve for x
    x = 167,324,356,809/256,846.50
  6. Step 6: Final answer
    x = 651,456.64

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.