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Finding the Third Proportional to 293,498,131 and 639,730,718

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Solution

The third proportional to 293,498,131 and 639,730,718 is: 1,394,405,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,498,131 : 639,730,718 = 639,730,718 : x
  2. Step 2: Convert to fraction form
    293,498,131/639,730,718 = 639,730,718/x
  3. Step 3: Cross multiply
    293,498,131x = 639,730,718 × 639,730,718
  4. Step 4: Simplify right side
    293,498,131x = 409,255,391,552,795,520
  5. Step 5: Solve for x
    x = 409,255,391,552,795,520/293,498,131
  6. Step 6: Final answer
    x = 1,394,405,443.60

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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.