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Finding the Third Proportional to 200,255,718 and 415,859,046

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Solution

The third proportional to 200,255,718 and 415,859,046 is: 863,589,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,255,718 : 415,859,046 = 415,859,046 : x
  2. Step 2: Convert to fraction form
    200,255,718/415,859,046 = 415,859,046/x
  3. Step 3: Cross multiply
    200,255,718x = 415,859,046 × 415,859,046
  4. Step 4: Simplify right side
    200,255,718x = 172,938,746,140,030,112
  5. Step 5: Solve for x
    x = 172,938,746,140,030,112/200,255,718
  6. Step 6: Final answer
    x = 863,589,553.73

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.