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Finding the Fourth Proportional to 831.98, 1,247.97 and 466.77

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Solution

The fourth proportional to 831.98, 1,247.97 and 466.77 is: 700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831.98 : 1,247.97 = 466.77 : x
  2. Step 2: Convert to fraction form
    831.98/1,247.97 = 466.77/x
  3. Step 3: Cross multiply
    831.98x = 1,247.97 × 466.77
  4. Step 4: Simplify right side
    831.98x = 582,514.96
  5. Step 5: Solve for x
    x = 582,514.96/831.98
  6. Step 6: Final answer
    x = 700.16

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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.