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Finding the Fourth Proportional to 316.18, 473.44 and 295.92

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Solution

The fourth proportional to 316.18, 473.44 and 295.92 is: 443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.18 : 473.44 = 295.92 : x
  2. Step 2: Convert to fraction form
    316.18/473.44 = 295.92/x
  3. Step 3: Cross multiply
    316.18x = 473.44 × 295.92
  4. Step 4: Simplify right side
    316.18x = 140,100.36
  5. Step 5: Solve for x
    x = 140,100.36/316.18
  6. Step 6: Final answer
    x = 443.10

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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.