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Finding the Fourth Proportional to 1,360.94, 1,878.10 and 801.41

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Solution

The fourth proportional to 1,360.94, 1,878.10 and 801.41 is: 1,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.94 : 1,878.10 = 801.41 : x
  2. Step 2: Convert to fraction form
    1,360.94/1,878.10 = 801.41/x
  3. Step 3: Cross multiply
    1,360.94x = 1,878.10 × 801.41
  4. Step 4: Simplify right side
    1,360.94x = 1,505,128.12
  5. Step 5: Solve for x
    x = 1,505,128.12/1,360.94
  6. Step 6: Final answer
    x = 1,105.95

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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.