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Finding the Third Proportional to 520,436,562.75 and 1,135,805,915.25

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Solution

The third proportional to 520,436,562.75 and 1,135,805,915.25 is: 2,478,794,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,436,562.75 : 1,135,805,915.25 = 1,135,805,915.25 : x
  2. Step 2: Convert to fraction form
    520,436,562.75/1,135,805,915.25 = 1,135,805,915.25/x
  3. Step 3: Cross multiply
    520,436,562.75x = 1,135,805,915.25 × 1,135,805,915.25
  4. Step 4: Simplify right side
    520,436,562.75x = 1,290,055,077,116,890,112
  5. Step 5: Solve for x
    x = 1,290,055,077,116,890,112/520,436,562.75
  6. Step 6: Final answer
    x = 2,478,794,092.21

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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.