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Finding the Fourth Proportional to 1,092.95, 1,508.43 and 694.93

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Solution

The fourth proportional to 1,092.95, 1,508.43 and 694.93 is: 959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.95 : 1,508.43 = 694.93 : x
  2. Step 2: Convert to fraction form
    1,092.95/1,508.43 = 694.93/x
  3. Step 3: Cross multiply
    1,092.95x = 1,508.43 × 694.93
  4. Step 4: Simplify right side
    1,092.95x = 1,048,255.15
  5. Step 5: Solve for x
    x = 1,048,255.15/1,092.95
  6. Step 6: Final answer
    x = 959.11

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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.