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Finding the Fourth Proportional to 1,093.18, 1,639.16 and 362.56

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Solution

The fourth proportional to 1,093.18, 1,639.16 and 362.56 is: 543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.18 : 1,639.16 = 362.56 : x
  2. Step 2: Convert to fraction form
    1,093.18/1,639.16 = 362.56/x
  3. Step 3: Cross multiply
    1,093.18x = 1,639.16 × 362.56
  4. Step 4: Simplify right side
    1,093.18x = 594,293.85
  5. Step 5: Solve for x
    x = 594,293.85/1,093.18
  6. Step 6: Final answer
    x = 543.64

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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.