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Finding the Fourth Proportional to 1,093.94, 1,640.29 and 363.32

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Solution

The fourth proportional to 1,093.94, 1,640.29 and 363.32 is: 544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.94 : 1,640.29 = 363.32 : x
  2. Step 2: Convert to fraction form
    1,093.94/1,640.29 = 363.32/x
  3. Step 3: Cross multiply
    1,093.94x = 1,640.29 × 363.32
  4. Step 4: Simplify right side
    1,093.94x = 595,950.16
  5. Step 5: Solve for x
    x = 595,950.16/1,093.94
  6. Step 6: Final answer
    x = 544.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.