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Finding the Fourth Proportional to 1,093.84, 1,640.93 and 363.25

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Solution

The fourth proportional to 1,093.84, 1,640.93 and 363.25 is: 544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.84 : 1,640.93 = 363.25 : x
  2. Step 2: Convert to fraction form
    1,093.84/1,640.93 = 363.25/x
  3. Step 3: Cross multiply
    1,093.84x = 1,640.93 × 363.25
  4. Step 4: Simplify right side
    1,093.84x = 596,067.82
  5. Step 5: Solve for x
    x = 596,067.82/1,093.84
  6. Step 6: Final answer
    x = 544.93

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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.