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Finding the Fourth Proportional to 692.52, 955.14 and 609.96

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Solution

The fourth proportional to 692.52, 955.14 and 609.96 is: 841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.52 : 955.14 = 609.96 : x
  2. Step 2: Convert to fraction form
    692.52/955.14 = 609.96/x
  3. Step 3: Cross multiply
    692.52x = 955.14 × 609.96
  4. Step 4: Simplify right side
    692.52x = 582,597.19
  5. Step 5: Solve for x
    x = 582,597.19/692.52
  6. Step 6: Final answer
    x = 841.27

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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.