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Finding the Fourth Proportional to 671.59, 1,006.66 and 232.42

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Solution

The fourth proportional to 671.59, 1,006.66 and 232.42 is: 348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.59 : 1,006.66 = 232.42 : x
  2. Step 2: Convert to fraction form
    671.59/1,006.66 = 232.42/x
  3. Step 3: Cross multiply
    671.59x = 1,006.66 × 232.42
  4. Step 4: Simplify right side
    671.59x = 233,967.92
  5. Step 5: Solve for x
    x = 233,967.92/671.59
  6. Step 6: Final answer
    x = 348.38

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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.