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Finding the Fourth Proportional to 937.67, 1,294 and 518.04

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Solution

The fourth proportional to 937.67, 1,294 and 518.04 is: 714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.67 : 1,294 = 518.04 : x
  2. Step 2: Convert to fraction form
    937.67/1,294 = 518.04/x
  3. Step 3: Cross multiply
    937.67x = 1,294 × 518.04
  4. Step 4: Simplify right side
    937.67x = 670,347.00
  5. Step 5: Solve for x
    x = 670,347.00/937.67
  6. Step 6: Final answer
    x = 714.91

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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.