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Finding the Fourth Proportional to 1,407.94, 1,942.05 and 1,360.42

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Solution

The fourth proportional to 1,407.94, 1,942.05 and 1,360.42 is: 1,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.94 : 1,942.05 = 1,360.42 : x
  2. Step 2: Convert to fraction form
    1,407.94/1,942.05 = 1,360.42/x
  3. Step 3: Cross multiply
    1,407.94x = 1,942.05 × 1,360.42
  4. Step 4: Simplify right side
    1,407.94x = 2,642,003.66
  5. Step 5: Solve for x
    x = 2,642,003.66/1,407.94
  6. Step 6: Final answer
    x = 1,876.50

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