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Finding the Fourth Proportional to 347,601.20, 521,790.60 and 269,063.60

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Solution

The fourth proportional to 347,601.20, 521,790.60 and 269,063.60 is: 403,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,601.20 : 521,790.60 = 269,063.60 : x
  2. Step 2: Convert to fraction form
    347,601.20/521,790.60 = 269,063.60/x
  3. Step 3: Cross multiply
    347,601.20x = 521,790.60 × 269,063.60
  4. Step 4: Simplify right side
    347,601.20x = 140,394,857,282.16
  5. Step 5: Solve for x
    x = 140,394,857,282.16/347,601.20
  6. Step 6: Final answer
    x = 403,896.35

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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.