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Finding the Fourth Proportional to 962.56, 1,433.96 and 927.72

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Solution

The fourth proportional to 962.56, 1,433.96 and 927.72 is: 1,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.56 : 1,433.96 = 927.72 : x
  2. Step 2: Convert to fraction form
    962.56/1,433.96 = 927.72/x
  3. Step 3: Cross multiply
    962.56x = 1,433.96 × 927.72
  4. Step 4: Simplify right side
    962.56x = 1,330,313.37
  5. Step 5: Solve for x
    x = 1,330,313.37/962.56
  6. Step 6: Final answer
    x = 1,382.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.