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Finding the Third Proportional to 216,753,895 and 330,212,411

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Solution

The third proportional to 216,753,895 and 330,212,411 is: 503,060,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,753,895 : 330,212,411 = 330,212,411 : x
  2. Step 2: Convert to fraction form
    216,753,895/330,212,411 = 330,212,411/x
  3. Step 3: Cross multiply
    216,753,895x = 330,212,411 × 330,212,411
  4. Step 4: Simplify right side
    216,753,895x = 109,040,236,378,432,928
  5. Step 5: Solve for x
    x = 109,040,236,378,432,928/216,753,895
  6. Step 6: Final answer
    x = 503,060,101.31

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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.