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Finding the Fourth Proportional to 956.20, 1,433.96 and 371.00

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Solution

The fourth proportional to 956.20, 1,433.96 and 371.00 is: 556.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.20 : 1,433.96 = 371.00 : x
  2. Step 2: Convert to fraction form
    956.20/1,433.96 = 371.00/x
  3. Step 3: Cross multiply
    956.20x = 1,433.96 × 371.00
  4. Step 4: Simplify right side
    956.20x = 532,000.89
  5. Step 5: Solve for x
    x = 532,000.89/956.20
  6. Step 6: Final answer
    x = 556.37

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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.