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Finding the Fourth Proportional to 973.54, 1,343.44 and 531.42

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Solution

The fourth proportional to 973.54, 1,343.44 and 531.42 is: 733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.54 : 1,343.44 = 531.42 : x
  2. Step 2: Convert to fraction form
    973.54/1,343.44 = 531.42/x
  3. Step 3: Cross multiply
    973.54x = 1,343.44 × 531.42
  4. Step 4: Simplify right side
    973.54x = 713,930.88
  5. Step 5: Solve for x
    x = 713,930.88/973.54
  6. Step 6: Final answer
    x = 733.33

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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.