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Finding the Fourth Proportional to 692.88, 955.86 and 453.62

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Solution

The fourth proportional to 692.88, 955.86 and 453.62 is: 625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.88 : 955.86 = 453.62 : x
  2. Step 2: Convert to fraction form
    692.88/955.86 = 453.62/x
  3. Step 3: Cross multiply
    692.88x = 955.86 × 453.62
  4. Step 4: Simplify right side
    692.88x = 433,597.21
  5. Step 5: Solve for x
    x = 433,597.21/692.88
  6. Step 6: Final answer
    x = 625.79

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