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Finding the Fourth Proportional to 404,361.25, 606,438.05 and 119,984.56

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Solution

The fourth proportional to 404,361.25, 606,438.05 and 119,984.56 is: 179,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,361.25 : 606,438.05 = 119,984.56 : x
  2. Step 2: Convert to fraction form
    404,361.25/606,438.05 = 119,984.56/x
  3. Step 3: Cross multiply
    404,361.25x = 606,438.05 × 119,984.56
  4. Step 4: Simplify right side
    404,361.25x = 72,763,200,480.49
  5. Step 5: Solve for x
    x = 72,763,200,480.49/404,361.25
  6. Step 6: Final answer
    x = 179,946.03

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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.