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Finding the Fourth Proportional to 424,144.80, 635,750.64 and 174,690.72

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Solution

The fourth proportional to 424,144.80, 635,750.64 and 174,690.72 is: 261,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,144.80 : 635,750.64 = 174,690.72 : x
  2. Step 2: Convert to fraction form
    424,144.80/635,750.64 = 174,690.72/x
  3. Step 3: Cross multiply
    424,144.80x = 635,750.64 × 174,690.72
  4. Step 4: Simplify right side
    424,144.80x = 111,059,737,042.06
  5. Step 5: Solve for x
    x = 111,059,737,042.06/424,144.80
  6. Step 6: Final answer
    x = 261,843.92

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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.