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Finding the Fourth Proportional to 3,544.19, 5,316.51 and 1,079.19

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Solution

The fourth proportional to 3,544.19, 5,316.51 and 1,079.19 is: 1,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.19 : 5,316.51 = 1,079.19 : x
  2. Step 2: Convert to fraction form
    3,544.19/5,316.51 = 1,079.19/x
  3. Step 3: Cross multiply
    3,544.19x = 5,316.51 × 1,079.19
  4. Step 4: Simplify right side
    3,544.19x = 5,737,524.43
  5. Step 5: Solve for x
    x = 5,737,524.43/3,544.19
  6. Step 6: Final answer
    x = 1,618.85

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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.