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Finding the Fourth Proportional to 937.96, 1,294.21 and 583.98

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Solution

The fourth proportional to 937.96, 1,294.21 and 583.98 is: 805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.96 : 1,294.21 = 583.98 : x
  2. Step 2: Convert to fraction form
    937.96/1,294.21 = 583.98/x
  3. Step 3: Cross multiply
    937.96x = 1,294.21 × 583.98
  4. Step 4: Simplify right side
    937.96x = 755,792.76
  5. Step 5: Solve for x
    x = 755,792.76/937.96
  6. Step 6: Final answer
    x = 805.78

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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.