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Finding the Third Proportional to 321,439,752 and 697,676,976

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Solution

The third proportional to 321,439,752 and 697,676,976 is: 1,514,290,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,439,752 : 697,676,976 = 697,676,976 : x
  2. Step 2: Convert to fraction form
    321,439,752/697,676,976 = 697,676,976/x
  3. Step 3: Cross multiply
    321,439,752x = 697,676,976 × 697,676,976
  4. Step 4: Simplify right side
    321,439,752x = 486,753,162,840,504,576
  5. Step 5: Solve for x
    x = 486,753,162,840,504,576/321,439,752
  6. Step 6: Final answer
    x = 1,514,290,500.20

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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.