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Finding the Fourth Proportional to 1,892.74, 2,839.12 and 594.31

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Solution

The fourth proportional to 1,892.74, 2,839.12 and 594.31 is: 891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.74 : 2,839.12 = 594.31 : x
  2. Step 2: Convert to fraction form
    1,892.74/2,839.12 = 594.31/x
  3. Step 3: Cross multiply
    1,892.74x = 2,839.12 × 594.31
  4. Step 4: Simplify right side
    1,892.74x = 1,687,317.41
  5. Step 5: Solve for x
    x = 1,687,317.41/1,892.74
  6. Step 6: Final answer
    x = 891.47

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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.