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Finding the Fourth Proportional to 1,322.93, 1,825.65 and 733.47

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Solution

The fourth proportional to 1,322.93, 1,825.65 and 733.47 is: 1,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.93 : 1,825.65 = 733.47 : x
  2. Step 2: Convert to fraction form
    1,322.93/1,825.65 = 733.47/x
  3. Step 3: Cross multiply
    1,322.93x = 1,825.65 × 733.47
  4. Step 4: Simplify right side
    1,322.93x = 1,339,059.51
  5. Step 5: Solve for x
    x = 1,339,059.51/1,322.93
  6. Step 6: Final answer
    x = 1,012.20

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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.