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Finding the Fourth Proportional to 1,322.94, 1,825.49 and 733.60

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Solution

The fourth proportional to 1,322.94, 1,825.49 and 733.60 is: 1,012.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.94 : 1,825.49 = 733.60 : x
  2. Step 2: Convert to fraction form
    1,322.94/1,825.49 = 733.60/x
  3. Step 3: Cross multiply
    1,322.94x = 1,825.49 × 733.60
  4. Step 4: Simplify right side
    1,322.94x = 1,339,176.73
  5. Step 5: Solve for x
    x = 1,339,176.73/1,322.94
  6. Step 6: Final answer
    x = 1,012.27

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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.