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Finding the Third Proportional to 678,444 and 996,922

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Solution

The third proportional to 678,444 and 996,922 is: 1,464,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,444 : 996,922 = 996,922 : x
  2. Step 2: Convert to fraction form
    678,444/996,922 = 996,922/x
  3. Step 3: Cross multiply
    678,444x = 996,922 × 996,922
  4. Step 4: Simplify right side
    678,444x = 993,853,474,084
  5. Step 5: Solve for x
    x = 993,853,474,084/678,444
  6. Step 6: Final answer
    x = 1,464,901.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.