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Finding the Fourth Proportional to 263,453.30, 394,305.15 and 263,453.30

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Solution

The fourth proportional to 263,453.30, 394,305.15 and 263,453.30 is: 394,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,453.30 : 394,305.15 = 263,453.30 : x
  2. Step 2: Convert to fraction form
    263,453.30/394,305.15 = 263,453.30/x
  3. Step 3: Cross multiply
    263,453.30x = 394,305.15 × 263,453.30
  4. Step 4: Simplify right side
    263,453.30x = 103,880,992,974.50
  5. Step 5: Solve for x
    x = 103,880,992,974.50/263,453.30
  6. Step 6: Final answer
    x = 394,305.15

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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.