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Finding the Fourth Proportional to 419,597.88, 629,392.06 and 251,165.26

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Solution

The fourth proportional to 419,597.88, 629,392.06 and 251,165.26 is: 376,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,597.88 : 629,392.06 = 251,165.26 : x
  2. Step 2: Convert to fraction form
    419,597.88/629,392.06 = 251,165.26/x
  3. Step 3: Cross multiply
    419,597.88x = 629,392.06 × 251,165.26
  4. Step 4: Simplify right side
    419,597.88x = 158,081,420,391.84
  5. Step 5: Solve for x
    x = 158,081,420,391.84/419,597.88
  6. Step 6: Final answer
    x = 376,745.04

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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.