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Finding the Fourth Proportional to 955.59, 1,433.48 and 262.23

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Solution

The fourth proportional to 955.59, 1,433.48 and 262.23 is: 393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.59 : 1,433.48 = 262.23 : x
  2. Step 2: Convert to fraction form
    955.59/1,433.48 = 262.23/x
  3. Step 3: Cross multiply
    955.59x = 1,433.48 × 262.23
  4. Step 4: Simplify right side
    955.59x = 375,900.15
  5. Step 5: Solve for x
    x = 375,900.15/955.59
  6. Step 6: Final answer
    x = 393.37

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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.