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Finding the Third Proportional to 376,521 and 827,779

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Solution

The third proportional to 376,521 and 827,779 is: 1,819,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,521 : 827,779 = 827,779 : x
  2. Step 2: Convert to fraction form
    376,521/827,779 = 827,779/x
  3. Step 3: Cross multiply
    376,521x = 827,779 × 827,779
  4. Step 4: Simplify right side
    376,521x = 685,218,072,841
  5. Step 5: Solve for x
    x = 685,218,072,841/376,521
  6. Step 6: Final answer
    x = 1,819,866.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.