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Finding the Fourth Proportional to 451,043.90, 675,846.18 and 330,542.42

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Solution

The fourth proportional to 451,043.90, 675,846.18 and 330,542.42 is: 495,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,043.90 : 675,846.18 = 330,542.42 : x
  2. Step 2: Convert to fraction form
    451,043.90/675,846.18 = 330,542.42/x
  3. Step 3: Cross multiply
    451,043.90x = 675,846.18 × 330,542.42
  4. Step 4: Simplify right side
    451,043.90x = 223,395,831,884.96
  5. Step 5: Solve for x
    x = 223,395,831,884.96/451,043.90
  6. Step 6: Final answer
    x = 495,286.23

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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.