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Finding the Fourth Proportional to 424,405.44, 635,753.40 and 196,379.70

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Solution

The fourth proportional to 424,405.44, 635,753.40 and 196,379.70 is: 294,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,405.44 : 635,753.40 = 196,379.70 : x
  2. Step 2: Convert to fraction form
    424,405.44/635,753.40 = 196,379.70/x
  3. Step 3: Cross multiply
    424,405.44x = 635,753.40 × 196,379.70
  4. Step 4: Simplify right side
    424,405.44x = 124,849,061,965.98
  5. Step 5: Solve for x
    x = 124,849,061,965.98/424,405.44
  6. Step 6: Final answer
    x = 294,174.04

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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.