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Finding the Fourth Proportional to 1,073.26, 1,609.19 and 706.94

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Solution

The fourth proportional to 1,073.26, 1,609.19 and 706.94 is: 1,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.26 : 1,609.19 = 706.94 : x
  2. Step 2: Convert to fraction form
    1,073.26/1,609.19 = 706.94/x
  3. Step 3: Cross multiply
    1,073.26x = 1,609.19 × 706.94
  4. Step 4: Simplify right side
    1,073.26x = 1,137,600.78
  5. Step 5: Solve for x
    x = 1,137,600.78/1,073.26
  6. Step 6: Final answer
    x = 1,059.95

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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.