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Finding the Fourth Proportional to 794.94, 1,193.82 and 692.88

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Solution

The fourth proportional to 794.94, 1,193.82 and 692.88 is: 1,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.94 : 1,193.82 = 692.88 : x
  2. Step 2: Convert to fraction form
    794.94/1,193.82 = 692.88/x
  3. Step 3: Cross multiply
    794.94x = 1,193.82 × 692.88
  4. Step 4: Simplify right side
    794.94x = 827,174.00
  5. Step 5: Solve for x
    x = 827,174.00/794.94
  6. Step 6: Final answer
    x = 1,040.55

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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.