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Finding the Fourth Proportional to 955.59, 1,433.43 and 262.25

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Solution

The fourth proportional to 955.59, 1,433.43 and 262.25 is: 393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.59 : 1,433.43 = 262.25 : x
  2. Step 2: Convert to fraction form
    955.59/1,433.43 = 262.25/x
  3. Step 3: Cross multiply
    955.59x = 1,433.43 × 262.25
  4. Step 4: Simplify right side
    955.59x = 375,917.02
  5. Step 5: Solve for x
    x = 375,917.02/955.59
  6. Step 6: Final answer
    x = 393.39

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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.