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Finding the Fourth Proportional to 942.94, 1,414.17 and 293.34

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Solution

The fourth proportional to 942.94, 1,414.17 and 293.34 is: 439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.94 : 1,414.17 = 293.34 : x
  2. Step 2: Convert to fraction form
    942.94/1,414.17 = 293.34/x
  3. Step 3: Cross multiply
    942.94x = 1,414.17 × 293.34
  4. Step 4: Simplify right side
    942.94x = 414,832.63
  5. Step 5: Solve for x
    x = 414,832.63/942.94
  6. Step 6: Final answer
    x = 439.94

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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.