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Finding the Fourth Proportional to 794.15, 1,095.97 and 462.61

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Solution

The fourth proportional to 794.15, 1,095.97 and 462.61 is: 638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.15 : 1,095.97 = 462.61 : x
  2. Step 2: Convert to fraction form
    794.15/1,095.97 = 462.61/x
  3. Step 3: Cross multiply
    794.15x = 1,095.97 × 462.61
  4. Step 4: Simplify right side
    794.15x = 507,007.11
  5. Step 5: Solve for x
    x = 507,007.11/794.15
  6. Step 6: Final answer
    x = 638.42

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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.