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Finding the Third Proportional to 528,873 and 1,162,721

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Solution

The third proportional to 528,873 and 1,162,721 is: 2,556,228.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,873 : 1,162,721 = 1,162,721 : x
  2. Step 2: Convert to fraction form
    528,873/1,162,721 = 1,162,721/x
  3. Step 3: Cross multiply
    528,873x = 1,162,721 × 1,162,721
  4. Step 4: Simplify right side
    528,873x = 1,351,920,123,841
  5. Step 5: Solve for x
    x = 1,351,920,123,841/528,873
  6. Step 6: Final answer
    x = 2,556,228.29

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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.