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Finding the Fourth Proportional to 955.65, 1,433.47 and 262.33

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Solution

The fourth proportional to 955.65, 1,433.47 and 262.33 is: 393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.65 : 1,433.47 = 262.33 : x
  2. Step 2: Convert to fraction form
    955.65/1,433.47 = 262.33/x
  3. Step 3: Cross multiply
    955.65x = 1,433.47 × 262.33
  4. Step 4: Simplify right side
    955.65x = 376,036.00
  5. Step 5: Solve for x
    x = 376,036.00/955.65
  6. Step 6: Final answer
    x = 393.49

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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.