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Finding the Fourth Proportional to 263,449.80, 394,022.70 and 235,571.40

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Solution

The fourth proportional to 263,449.80, 394,022.70 and 235,571.40 is: 352,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,449.80 : 394,022.70 = 235,571.40 : x
  2. Step 2: Convert to fraction form
    263,449.80/394,022.70 = 235,571.40/x
  3. Step 3: Cross multiply
    263,449.80x = 394,022.70 × 235,571.40
  4. Step 4: Simplify right side
    263,449.80x = 92,820,479,070.78
  5. Step 5: Solve for x
    x = 92,820,479,070.78/263,449.80
  6. Step 6: Final answer
    x = 352,327.01

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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.