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Finding the Third Proportional to 216,753,906 and 330,212,426

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Solution

The third proportional to 216,753,906 and 330,212,426 is: 503,060,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,753,906 : 330,212,426 = 330,212,426 : x
  2. Step 2: Convert to fraction form
    216,753,906/330,212,426 = 330,212,426/x
  3. Step 3: Cross multiply
    216,753,906x = 330,212,426 × 330,212,426
  4. Step 4: Simplify right side
    216,753,906x = 109,040,246,284,805,472
  5. Step 5: Solve for x
    x = 109,040,246,284,805,472/216,753,906
  6. Step 6: Final answer
    x = 503,060,121.49

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.