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Finding the Third Proportional to 381,553 and 828,770

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Solution

The third proportional to 381,553 and 828,770 is: 1,800,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,553 : 828,770 = 828,770 : x
  2. Step 2: Convert to fraction form
    381,553/828,770 = 828,770/x
  3. Step 3: Cross multiply
    381,553x = 828,770 × 828,770
  4. Step 4: Simplify right side
    381,553x = 686,859,712,900
  5. Step 5: Solve for x
    x = 686,859,712,900/381,553
  6. Step 6: Final answer
    x = 1,800,168.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.