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Finding the Fourth Proportional to 1,227.02, 1,692.85 and 695.82

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Solution

The fourth proportional to 1,227.02, 1,692.85 and 695.82 is: 959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.02 : 1,692.85 = 695.82 : x
  2. Step 2: Convert to fraction form
    1,227.02/1,692.85 = 695.82/x
  3. Step 3: Cross multiply
    1,227.02x = 1,692.85 × 695.82
  4. Step 4: Simplify right side
    1,227.02x = 1,177,918.89
  5. Step 5: Solve for x
    x = 1,177,918.89/1,227.02
  6. Step 6: Final answer
    x = 959.99

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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.