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Finding the Fourth Proportional to 424,062.60, 635,235.12 and 196,034.28

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Solution

The fourth proportional to 424,062.60, 635,235.12 and 196,034.28 is: 293,654.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,062.60 : 635,235.12 = 196,034.28 : x
  2. Step 2: Convert to fraction form
    424,062.60/635,235.12 = 196,034.28/x
  3. Step 3: Cross multiply
    424,062.60x = 635,235.12 × 196,034.28
  4. Step 4: Simplify right side
    424,062.60x = 124,527,859,379.91
  5. Step 5: Solve for x
    x = 124,527,859,379.91/424,062.60
  6. Step 6: Final answer
    x = 293,654.43

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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.