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Finding the Fourth Proportional to 1,069.69, 1,475.41 and 695.98

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Solution

The fourth proportional to 1,069.69, 1,475.41 and 695.98 is: 959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069.69 : 1,475.41 = 695.98 : x
  2. Step 2: Convert to fraction form
    1,069.69/1,475.41 = 695.98/x
  3. Step 3: Cross multiply
    1,069.69x = 1,475.41 × 695.98
  4. Step 4: Simplify right side
    1,069.69x = 1,026,855.85
  5. Step 5: Solve for x
    x = 1,026,855.85/1,069.69
  6. Step 6: Final answer
    x = 959.96

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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.