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Finding the Third Proportional to 376,393.50 and 811,890

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Solution

The third proportional to 376,393.50 and 811,890 is: 1,751,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,393.50 : 811,890 = 811,890 : x
  2. Step 2: Convert to fraction form
    376,393.50/811,890 = 811,890/x
  3. Step 3: Cross multiply
    376,393.50x = 811,890 × 811,890
  4. Step 4: Simplify right side
    376,393.50x = 659,165,372,100
  5. Step 5: Solve for x
    x = 659,165,372,100/376,393.50
  6. Step 6: Final answer
    x = 1,751,266.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.