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Finding the Third Proportional to 307,368,917 and 472,156,253

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Solution

The third proportional to 307,368,917 and 472,156,253 is: 725,289,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,368,917 : 472,156,253 = 472,156,253 : x
  2. Step 2: Convert to fraction form
    307,368,917/472,156,253 = 472,156,253/x
  3. Step 3: Cross multiply
    307,368,917x = 472,156,253 × 472,156,253
  4. Step 4: Simplify right side
    307,368,917x = 222,931,527,247,000,000
  5. Step 5: Solve for x
    x = 222,931,527,247,000,000/307,368,917
  6. Step 6: Final answer
    x = 725,289,757.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.