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Finding the Fourth Proportional to 942.98, 1,414.44 and 293.74

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Solution

The fourth proportional to 942.98, 1,414.44 and 293.74 is: 440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.98 : 1,414.44 = 293.74 : x
  2. Step 2: Convert to fraction form
    942.98/1,414.44 = 293.74/x
  3. Step 3: Cross multiply
    942.98x = 1,414.44 × 293.74
  4. Step 4: Simplify right side
    942.98x = 415,477.61
  5. Step 5: Solve for x
    x = 415,477.61/942.98
  6. Step 6: Final answer
    x = 440.60

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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.