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Finding the Fourth Proportional to 316.06, 473.52 and 264.64

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Solution

The fourth proportional to 316.06, 473.52 and 264.64 is: 396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.06 : 473.52 = 264.64 : x
  2. Step 2: Convert to fraction form
    316.06/473.52 = 264.64/x
  3. Step 3: Cross multiply
    316.06x = 473.52 × 264.64
  4. Step 4: Simplify right side
    316.06x = 125,312.33
  5. Step 5: Solve for x
    x = 125,312.33/316.06
  6. Step 6: Final answer
    x = 396.48

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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.