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Finding the Third Proportional to 321,857,163.56 and 695,168,137.69

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Solution

The third proportional to 321,857,163.56 and 695,168,137.69 is: 1,501,469,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,857,163.56 : 695,168,137.69 = 695,168,137.69 : x
  2. Step 2: Convert to fraction form
    321,857,163.56/695,168,137.69 = 695,168,137.69/x
  3. Step 3: Cross multiply
    321,857,163.56x = 695,168,137.69 × 695,168,137.69
  4. Step 4: Simplify right side
    321,857,163.56x = 483,258,739,655,906,944
  5. Step 5: Solve for x
    x = 483,258,739,655,906,944/321,857,163.56
  6. Step 6: Final answer
    x = 1,501,469,578.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.