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Finding the Fourth Proportional to 437,361.70, 603,352.80 and 255,961.26

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Solution

The fourth proportional to 437,361.70, 603,352.80 and 255,961.26 is: 353,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,361.70 : 603,352.80 = 255,961.26 : x
  2. Step 2: Convert to fraction form
    437,361.70/603,352.80 = 255,961.26/x
  3. Step 3: Cross multiply
    437,361.70x = 603,352.80 × 255,961.26
  4. Step 4: Simplify right side
    437,361.70x = 154,434,942,912.53
  5. Step 5: Solve for x
    x = 154,434,942,912.53/437,361.70
  6. Step 6: Final answer
    x = 353,105.78

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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.