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Finding the Fourth Proportional to 577,626.27, 866,865.12 and 274,021.38

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Solution

The fourth proportional to 577,626.27, 866,865.12 and 274,021.38 is: 411,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,626.27 : 866,865.12 = 274,021.38 : x
  2. Step 2: Convert to fraction form
    577,626.27/866,865.12 = 274,021.38/x
  3. Step 3: Cross multiply
    577,626.27x = 866,865.12 × 274,021.38
  4. Step 4: Simplify right side
    577,626.27x = 237,539,576,456.27
  5. Step 5: Solve for x
    x = 237,539,576,456.27/577,626.27
  6. Step 6: Final answer
    x = 411,234.03

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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.