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Finding the Third Proportional to 395,392 and 823,552

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Solution

The third proportional to 395,392 and 823,552 is: 1,715,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,392 : 823,552 = 823,552 : x
  2. Step 2: Convert to fraction form
    395,392/823,552 = 823,552/x
  3. Step 3: Cross multiply
    395,392x = 823,552 × 823,552
  4. Step 4: Simplify right side
    395,392x = 678,237,896,704
  5. Step 5: Solve for x
    x = 678,237,896,704/395,392
  6. Step 6: Final answer
    x = 1,715,355.64

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.