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Finding the Fourth Proportional to 1,025.78, 1,414.98 and 583.59

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Solution

The fourth proportional to 1,025.78, 1,414.98 and 583.59 is: 805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.78 : 1,414.98 = 583.59 : x
  2. Step 2: Convert to fraction form
    1,025.78/1,414.98 = 583.59/x
  3. Step 3: Cross multiply
    1,025.78x = 1,414.98 × 583.59
  4. Step 4: Simplify right side
    1,025.78x = 825,773.48
  5. Step 5: Solve for x
    x = 825,773.48/1,025.78
  6. Step 6: Final answer
    x = 805.02

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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.