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Finding the Third Proportional to 223,958,220 and 347,728,680

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Solution

The third proportional to 223,958,220 and 347,728,680 is: 539,900,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,958,220 : 347,728,680 = 347,728,680 : x
  2. Step 2: Convert to fraction form
    223,958,220/347,728,680 = 347,728,680/x
  3. Step 3: Cross multiply
    223,958,220x = 347,728,680 × 347,728,680
  4. Step 4: Simplify right side
    223,958,220x = 120,915,234,894,542,400
  5. Step 5: Solve for x
    x = 120,915,234,894,542,400/223,958,220
  6. Step 6: Final answer
    x = 539,900,856.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.