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Finding the Fourth Proportional to 794.95, 1,192.56 and 247.18

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Solution

The fourth proportional to 794.95, 1,192.56 and 247.18 is: 370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.95 : 1,192.56 = 247.18 : x
  2. Step 2: Convert to fraction form
    794.95/1,192.56 = 247.18/x
  3. Step 3: Cross multiply
    794.95x = 1,192.56 × 247.18
  4. Step 4: Simplify right side
    794.95x = 294,775.74
  5. Step 5: Solve for x
    x = 294,775.74/794.95
  6. Step 6: Final answer
    x = 370.81

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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.