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Finding the Fourth Proportional to 692.60, 1,036.74 and 367.52

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Solution

The fourth proportional to 692.60, 1,036.74 and 367.52 is: 550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.60 : 1,036.74 = 367.52 : x
  2. Step 2: Convert to fraction form
    692.60/1,036.74 = 367.52/x
  3. Step 3: Cross multiply
    692.60x = 1,036.74 × 367.52
  4. Step 4: Simplify right side
    692.60x = 381,022.68
  5. Step 5: Solve for x
    x = 381,022.68/692.60
  6. Step 6: Final answer
    x = 550.13

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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.