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Finding the Fourth Proportional to 955.69, 1,433.53 and 262.36

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Solution

The fourth proportional to 955.69, 1,433.53 and 262.36 is: 393.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.69 : 1,433.53 = 262.36 : x
  2. Step 2: Convert to fraction form
    955.69/1,433.53 = 262.36/x
  3. Step 3: Cross multiply
    955.69x = 1,433.53 × 262.36
  4. Step 4: Simplify right side
    955.69x = 376,097.46
  5. Step 5: Solve for x
    x = 376,097.46/955.69
  6. Step 6: Final answer
    x = 393.54

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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.