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Finding the Fourth Proportional to 629,894.75, 945,233.96 and 255,917.75

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Solution

The fourth proportional to 629,894.75, 945,233.96 and 255,917.75 is: 384,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,894.75 : 945,233.96 = 255,917.75 : x
  2. Step 2: Convert to fraction form
    629,894.75/945,233.96 = 255,917.75/x
  3. Step 3: Cross multiply
    629,894.75x = 945,233.96 × 255,917.75
  4. Step 4: Simplify right side
    629,894.75x = 241,902,142,261.03
  5. Step 5: Solve for x
    x = 241,902,142,261.03/629,894.75
  6. Step 6: Final answer
    x = 384,035.82

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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.