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Finding the Fourth Proportional to 262,820,793.90, 394,231,190.85 and 262,820,793.90

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Solution

The fourth proportional to 262,820,793.90, 394,231,190.85 and 262,820,793.90 is: 394,231,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,820,793.90 : 394,231,190.85 = 262,820,793.90 : x
  2. Step 2: Convert to fraction form
    262,820,793.90/394,231,190.85 = 262,820,793.90/x
  3. Step 3: Cross multiply
    262,820,793.90x = 394,231,190.85 × 262,820,793.90
  4. Step 4: Simplify right side
    262,820,793.90x = 103,612,154,559,339,424
  5. Step 5: Solve for x
    x = 103,612,154,559,339,424/262,820,793.90
  6. Step 6: Final answer
    x = 394,231,190.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.