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Finding the Fourth Proportional to 3,993,174.72, 5,988,579.48 and 1,153,311.48

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Solution

The fourth proportional to 3,993,174.72, 5,988,579.48 and 1,153,311.48 is: 1,729,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993,174.72 : 5,988,579.48 = 1,153,311.48 : x
  2. Step 2: Convert to fraction form
    3,993,174.72/5,988,579.48 = 1,153,311.48/x
  3. Step 3: Cross multiply
    3,993,174.72x = 5,988,579.48 × 1,153,311.48
  4. Step 4: Simplify right side
    3,993,174.72x = 6,906,697,463,176.43
  5. Step 5: Solve for x
    x = 6,906,697,463,176.43/3,993,174.72
  6. Step 6: Final answer
    x = 1,729,625.66

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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.