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Finding the Fourth Proportional to 1,401.01, 1,933.41 and 771.56

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Solution

The fourth proportional to 1,401.01, 1,933.41 and 771.56 is: 1,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.01 : 1,933.41 = 771.56 : x
  2. Step 2: Convert to fraction form
    1,401.01/1,933.41 = 771.56/x
  3. Step 3: Cross multiply
    1,401.01x = 1,933.41 × 771.56
  4. Step 4: Simplify right side
    1,401.01x = 1,491,745.03
  5. Step 5: Solve for x
    x = 1,491,745.03/1,401.01
  6. Step 6: Final answer
    x = 1,064.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.