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Finding the Fourth Proportional to 692.36, 955.94 and 534.74

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Solution

The fourth proportional to 692.36, 955.94 and 534.74 is: 738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.36 : 955.94 = 534.74 : x
  2. Step 2: Convert to fraction form
    692.36/955.94 = 534.74/x
  3. Step 3: Cross multiply
    692.36x = 955.94 × 534.74
  4. Step 4: Simplify right side
    692.36x = 511,171.90
  5. Step 5: Solve for x
    x = 511,171.90/692.36
  6. Step 6: Final answer
    x = 738.30

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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.