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Finding the Fourth Proportional to 692.37, 955.62 and 552.69

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Solution

The fourth proportional to 692.37, 955.62 and 552.69 is: 762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.37 : 955.62 = 552.69 : x
  2. Step 2: Convert to fraction form
    692.37/955.62 = 552.69/x
  3. Step 3: Cross multiply
    692.37x = 955.62 × 552.69
  4. Step 4: Simplify right side
    692.37x = 528,161.62
  5. Step 5: Solve for x
    x = 528,161.62/692.37
  6. Step 6: Final answer
    x = 762.83

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Why These Related Problems?

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