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Finding the Fourth Proportional to 942.34, 1,414.72 and 798.96

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Solution

The fourth proportional to 942.34, 1,414.72 and 798.96 is: 1,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.34 : 1,414.72 = 798.96 : x
  2. Step 2: Convert to fraction form
    942.34/1,414.72 = 798.96/x
  3. Step 3: Cross multiply
    942.34x = 1,414.72 × 798.96
  4. Step 4: Simplify right side
    942.34x = 1,130,304.69
  5. Step 5: Solve for x
    x = 1,130,304.69/942.34
  6. Step 6: Final answer
    x = 1,199.47

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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.