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Finding the Fourth Proportional to 624,399.21, 861,672.42 and 337,922.46

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Solution

The fourth proportional to 624,399.21, 861,672.42 and 337,922.46 is: 466,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,399.21 : 861,672.42 = 337,922.46 : x
  2. Step 2: Convert to fraction form
    624,399.21/861,672.42 = 337,922.46/x
  3. Step 3: Cross multiply
    624,399.21x = 861,672.42 × 337,922.46
  4. Step 4: Simplify right side
    624,399.21x = 291,178,463,880.55
  5. Step 5: Solve for x
    x = 291,178,463,880.55/624,399.21
  6. Step 6: Final answer
    x = 466,333.81

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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.