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Finding the Fourth Proportional to 335.98, 463.70 and 211.68

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Solution

The fourth proportional to 335.98, 463.70 and 211.68 is: 292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.98 : 463.70 = 211.68 : x
  2. Step 2: Convert to fraction form
    335.98/463.70 = 211.68/x
  3. Step 3: Cross multiply
    335.98x = 463.70 × 211.68
  4. Step 4: Simplify right side
    335.98x = 98,156.02
  5. Step 5: Solve for x
    x = 98,156.02/335.98
  6. Step 6: Final answer
    x = 292.15

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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.