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Finding the Fourth Proportional to 1,651.98, 2,278.89 and 1,258.32

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Solution

The fourth proportional to 1,651.98, 2,278.89 and 1,258.32 is: 1,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.98 : 2,278.89 = 1,258.32 : x
  2. Step 2: Convert to fraction form
    1,651.98/2,278.89 = 1,258.32/x
  3. Step 3: Cross multiply
    1,651.98x = 2,278.89 × 1,258.32
  4. Step 4: Simplify right side
    1,651.98x = 2,867,572.86
  5. Step 5: Solve for x
    x = 2,867,572.86/1,651.98
  6. Step 6: Final answer
    x = 1,735.84

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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.