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Finding the Fourth Proportional to 624,361.74, 861,621.42 and 337,881.78

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Solution

The fourth proportional to 624,361.74, 861,621.42 and 337,881.78 is: 466,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,361.74 : 861,621.42 = 337,881.78 : x
  2. Step 2: Convert to fraction form
    624,361.74/861,621.42 = 337,881.78/x
  3. Step 3: Cross multiply
    624,361.74x = 861,621.42 × 337,881.78
  4. Step 4: Simplify right side
    624,361.74x = 291,126,179,075.73
  5. Step 5: Solve for x
    x = 291,126,179,075.73/624,361.74
  6. Step 6: Final answer
    x = 466,278.06

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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.