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Finding the Fourth Proportional to 1,167.95, 1,611.33 and 695.85

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Solution

The fourth proportional to 1,167.95, 1,611.33 and 695.85 is: 960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.95 : 1,611.33 = 695.85 : x
  2. Step 2: Convert to fraction form
    1,167.95/1,611.33 = 695.85/x
  3. Step 3: Cross multiply
    1,167.95x = 1,611.33 × 695.85
  4. Step 4: Simplify right side
    1,167.95x = 1,121,243.98
  5. Step 5: Solve for x
    x = 1,121,243.98/1,167.95
  6. Step 6: Final answer
    x = 960.01

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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.