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Finding the Fourth Proportional to 955.86, 1,433.49 and 632.94

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Solution

The fourth proportional to 955.86, 1,433.49 and 632.94 is: 949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.86 : 1,433.49 = 632.94 : x
  2. Step 2: Convert to fraction form
    955.86/1,433.49 = 632.94/x
  3. Step 3: Cross multiply
    955.86x = 1,433.49 × 632.94
  4. Step 4: Simplify right side
    955.86x = 907,313.16
  5. Step 5: Solve for x
    x = 907,313.16/955.86
  6. Step 6: Final answer
    x = 949.21

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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.