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Finding the Fourth Proportional to 1,044.26, 1,440.66 and 651.44

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Solution

The fourth proportional to 1,044.26, 1,440.66 and 651.44 is: 898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.26 : 1,440.66 = 651.44 : x
  2. Step 2: Convert to fraction form
    1,044.26/1,440.66 = 651.44/x
  3. Step 3: Cross multiply
    1,044.26x = 1,440.66 × 651.44
  4. Step 4: Simplify right side
    1,044.26x = 938,503.55
  5. Step 5: Solve for x
    x = 938,503.55/1,044.26
  6. Step 6: Final answer
    x = 898.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.