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Finding the Fourth Proportional to 394,561.56, 544,361.64 and 224,675.40

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Solution

The fourth proportional to 394,561.56, 544,361.64 and 224,675.40 is: 309,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,561.56 : 544,361.64 = 224,675.40 : x
  2. Step 2: Convert to fraction form
    394,561.56/544,361.64 = 224,675.40/x
  3. Step 3: Cross multiply
    394,561.56x = 544,361.64 × 224,675.40
  4. Step 4: Simplify right side
    394,561.56x = 122,304,669,211.66
  5. Step 5: Solve for x
    x = 122,304,669,211.66/394,561.56
  6. Step 6: Final answer
    x = 309,976.14

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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.