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Finding the Third Proportional to 201,890,992 and 439,211,383

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Solution

The third proportional to 201,890,992 and 439,211,383 is: 955,498,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,890,992 : 439,211,383 = 439,211,383 : x
  2. Step 2: Convert to fraction form
    201,890,992/439,211,383 = 439,211,383/x
  3. Step 3: Cross multiply
    201,890,992x = 439,211,383 × 439,211,383
  4. Step 4: Simplify right side
    201,890,992x = 192,906,638,956,772,704
  5. Step 5: Solve for x
    x = 192,906,638,956,772,704/201,890,992
  6. Step 6: Final answer
    x = 955,498,990.05

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.