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Finding the Fourth Proportional to 1,193.99, 1,791.79 and 617.27

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Solution

The fourth proportional to 1,193.99, 1,791.79 and 617.27 is: 926.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.99 : 1,791.79 = 617.27 : x
  2. Step 2: Convert to fraction form
    1,193.99/1,791.79 = 617.27/x
  3. Step 3: Cross multiply
    1,193.99x = 1,791.79 × 617.27
  4. Step 4: Simplify right side
    1,193.99x = 1,106,007.71
  5. Step 5: Solve for x
    x = 1,106,007.71/1,193.99
  6. Step 6: Final answer
    x = 926.32

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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.