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Finding the Fourth Proportional to 973.44, 1,458.69 and 791.19

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Solution

The fourth proportional to 973.44, 1,458.69 and 791.19 is: 1,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.44 : 1,458.69 = 791.19 : x
  2. Step 2: Convert to fraction form
    973.44/1,458.69 = 791.19/x
  3. Step 3: Cross multiply
    973.44x = 1,458.69 × 791.19
  4. Step 4: Simplify right side
    973.44x = 1,154,100.94
  5. Step 5: Solve for x
    x = 1,154,100.94/973.44
  6. Step 6: Final answer
    x = 1,185.59

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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.