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Finding the Fourth Proportional to 937.58, 1,294.17 and 605.75

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Solution

The fourth proportional to 937.58, 1,294.17 and 605.75 is: 836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.58 : 1,294.17 = 605.75 : x
  2. Step 2: Convert to fraction form
    937.58/1,294.17 = 605.75/x
  3. Step 3: Cross multiply
    937.58x = 1,294.17 × 605.75
  4. Step 4: Simplify right side
    937.58x = 783,946.71
  5. Step 5: Solve for x
    x = 783,946.71/937.58
  6. Step 6: Final answer
    x = 836.14

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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.