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Finding the Fourth Proportional to 353,791.80, 530,687.70 and 235,693.80

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Solution

The fourth proportional to 353,791.80, 530,687.70 and 235,693.80 is: 353,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,791.80 : 530,687.70 = 235,693.80 : x
  2. Step 2: Convert to fraction form
    353,791.80/530,687.70 = 235,693.80/x
  3. Step 3: Cross multiply
    353,791.80x = 530,687.70 × 235,693.80
  4. Step 4: Simplify right side
    353,791.80x = 125,079,800,626.26
  5. Step 5: Solve for x
    x = 125,079,800,626.26/353,791.80
  6. Step 6: Final answer
    x = 353,540.70

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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.