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Finding the Fourth Proportional to 335.22, 462.72 and 210.93

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Solution

The fourth proportional to 335.22, 462.72 and 210.93 is: 291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.22 : 462.72 = 210.93 : x
  2. Step 2: Convert to fraction form
    335.22/462.72 = 210.93/x
  3. Step 3: Cross multiply
    335.22x = 462.72 × 210.93
  4. Step 4: Simplify right side
    335.22x = 97,601.53
  5. Step 5: Solve for x
    x = 97,601.53/335.22
  6. Step 6: Final answer
    x = 291.16

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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.