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Finding the Fourth Proportional to 1,978.47, 2,968.89 and 882.93

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Solution

The fourth proportional to 1,978.47, 2,968.89 and 882.93 is: 1,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978.47 : 2,968.89 = 882.93 : x
  2. Step 2: Convert to fraction form
    1,978.47/2,968.89 = 882.93/x
  3. Step 3: Cross multiply
    1,978.47x = 2,968.89 × 882.93
  4. Step 4: Simplify right side
    1,978.47x = 2,621,322.05
  5. Step 5: Solve for x
    x = 2,621,322.05/1,978.47
  6. Step 6: Final answer
    x = 1,324.92

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