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Finding the Fourth Proportional to 394,361.44, 544,218.80 and 224,611.36

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Solution

The fourth proportional to 394,361.44, 544,218.80 and 224,611.36 is: 309,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,361.44 : 544,218.80 = 224,611.36 : x
  2. Step 2: Convert to fraction form
    394,361.44/544,218.80 = 224,611.36/x
  3. Step 3: Cross multiply
    394,361.44x = 544,218.80 × 224,611.36
  4. Step 4: Simplify right side
    394,361.44x = 122,237,722,321.96
  5. Step 5: Solve for x
    x = 122,237,722,321.96/394,361.44
  6. Step 6: Final answer
    x = 309,963.68

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1.5x scale

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.