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Finding the Fourth Proportional to 905.98, 1,358.67 and 467.17

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Solution

The fourth proportional to 905.98, 1,358.67 and 467.17 is: 700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    905.98 : 1,358.67 = 467.17 : x
  2. Step 2: Convert to fraction form
    905.98/1,358.67 = 467.17/x
  3. Step 3: Cross multiply
    905.98x = 1,358.67 × 467.17
  4. Step 4: Simplify right side
    905.98x = 634,728.22
  5. Step 5: Solve for x
    x = 634,728.22/905.98
  6. Step 6: Final answer
    x = 700.60

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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.