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Finding the Fourth Proportional to 1,093.46, 1,640.43 and 363.01

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Solution

The fourth proportional to 1,093.46, 1,640.43 and 363.01 is: 544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.46 : 1,640.43 = 363.01 : x
  2. Step 2: Convert to fraction form
    1,093.46/1,640.43 = 363.01/x
  3. Step 3: Cross multiply
    1,093.46x = 1,640.43 × 363.01
  4. Step 4: Simplify right side
    1,093.46x = 595,492.49
  5. Step 5: Solve for x
    x = 595,492.49/1,093.46
  6. Step 6: Final answer
    x = 544.59

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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.