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Finding the Fourth Proportional to 332.10, 497.70 and 271.35

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Solution

The fourth proportional to 332.10, 497.70 and 271.35 is: 406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.10 : 497.70 = 271.35 : x
  2. Step 2: Convert to fraction form
    332.10/497.70 = 271.35/x
  3. Step 3: Cross multiply
    332.10x = 497.70 × 271.35
  4. Step 4: Simplify right side
    332.10x = 135,050.90
  5. Step 5: Solve for x
    x = 135,050.90/332.10
  6. Step 6: Final answer
    x = 406.66

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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.