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Finding the Fourth Proportional to 1,589.76, 2,193.40 and 926.48

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Solution

The fourth proportional to 1,589.76, 2,193.40 and 926.48 is: 1,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.76 : 2,193.40 = 926.48 : x
  2. Step 2: Convert to fraction form
    1,589.76/2,193.40 = 926.48/x
  3. Step 3: Cross multiply
    1,589.76x = 2,193.40 × 926.48
  4. Step 4: Simplify right side
    1,589.76x = 2,032,141.23
  5. Step 5: Solve for x
    x = 2,032,141.23/1,589.76
  6. Step 6: Final answer
    x = 1,278.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.