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Finding the Fourth Proportional to 965.99, 1,450.74 and 926.84

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Solution

The fourth proportional to 965.99, 1,450.74 and 926.84 is: 1,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.99 : 1,450.74 = 926.84 : x
  2. Step 2: Convert to fraction form
    965.99/1,450.74 = 926.84/x
  3. Step 3: Cross multiply
    965.99x = 1,450.74 × 926.84
  4. Step 4: Simplify right side
    965.99x = 1,344,610.96
  5. Step 5: Solve for x
    x = 1,344,610.96/965.99
  6. Step 6: Final answer
    x = 1,391.95

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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.