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Finding the Fourth Proportional to 294.93, 407.46 and 274.44

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Solution

The fourth proportional to 294.93, 407.46 and 274.44 is: 379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.93 : 407.46 = 274.44 : x
  2. Step 2: Convert to fraction form
    294.93/407.46 = 274.44/x
  3. Step 3: Cross multiply
    294.93x = 407.46 × 274.44
  4. Step 4: Simplify right side
    294.93x = 111,823.32
  5. Step 5: Solve for x
    x = 111,823.32/294.93
  6. Step 6: Final answer
    x = 379.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.