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Finding the Fourth Proportional to 1,044.46, 1,441.64 and 651.25

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Solution

The fourth proportional to 1,044.46, 1,441.64 and 651.25 is: 898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.46 : 1,441.64 = 651.25 : x
  2. Step 2: Convert to fraction form
    1,044.46/1,441.64 = 651.25/x
  3. Step 3: Cross multiply
    1,044.46x = 1,441.64 × 651.25
  4. Step 4: Simplify right side
    1,044.46x = 938,868.05
  5. Step 5: Solve for x
    x = 938,868.05/1,044.46
  6. Step 6: Final answer
    x = 898.90

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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.