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Finding the Fourth Proportional to 481,640.40, 722,241.90 and 182,021.40

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Solution

The fourth proportional to 481,640.40, 722,241.90 and 182,021.40 is: 272,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,640.40 : 722,241.90 = 182,021.40 : x
  2. Step 2: Convert to fraction form
    481,640.40/722,241.90 = 182,021.40/x
  3. Step 3: Cross multiply
    481,640.40x = 722,241.90 × 182,021.40
  4. Step 4: Simplify right side
    481,640.40x = 131,463,481,776.66
  5. Step 5: Solve for x
    x = 131,463,481,776.66/481,640.40
  6. Step 6: Final answer
    x = 272,949.45

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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.