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Finding the Fourth Proportional to 955.44, 1,318.41 and 582.44

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Solution

The fourth proportional to 955.44, 1,318.41 and 582.44 is: 803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.44 : 1,318.41 = 582.44 : x
  2. Step 2: Convert to fraction form
    955.44/1,318.41 = 582.44/x
  3. Step 3: Cross multiply
    955.44x = 1,318.41 × 582.44
  4. Step 4: Simplify right side
    955.44x = 767,888.13
  5. Step 5: Solve for x
    x = 767,888.13/955.44
  6. Step 6: Final answer
    x = 803.70

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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.