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Finding the Fourth Proportional to 937.94, 1,293.21 and 583.74

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Solution

The fourth proportional to 937.94, 1,293.21 and 583.74 is: 804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.94 : 1,293.21 = 583.74 : x
  2. Step 2: Convert to fraction form
    937.94/1,293.21 = 583.74/x
  3. Step 3: Cross multiply
    937.94x = 1,293.21 × 583.74
  4. Step 4: Simplify right side
    937.94x = 754,898.41
  5. Step 5: Solve for x
    x = 754,898.41/937.94
  6. Step 6: Final answer
    x = 804.85

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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.