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Finding the Fourth Proportional to 694,841.18, 959,479.25 and 437,147.65

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Solution

The fourth proportional to 694,841.18, 959,479.25 and 437,147.65 is: 603,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,841.18 : 959,479.25 = 437,147.65 : x
  2. Step 2: Convert to fraction form
    694,841.18/959,479.25 = 437,147.65/x
  3. Step 3: Cross multiply
    694,841.18x = 959,479.25 × 437,147.65
  4. Step 4: Simplify right side
    694,841.18x = 419,434,099,361.26
  5. Step 5: Solve for x
    x = 419,434,099,361.26/694,841.18
  6. Step 6: Final answer
    x = 603,640.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.