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Finding the Fourth Proportional to 657,646.40, 986,469.60 and 657,646.40

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Solution

The fourth proportional to 657,646.40, 986,469.60 and 657,646.40 is: 986,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,646.40 : 986,469.60 = 657,646.40 : x
  2. Step 2: Convert to fraction form
    657,646.40/986,469.60 = 657,646.40/x
  3. Step 3: Cross multiply
    657,646.40x = 986,469.60 × 657,646.40
  4. Step 4: Simplify right side
    657,646.40x = 648,748,181,149.44
  5. Step 5: Solve for x
    x = 648,748,181,149.44/657,646.40
  6. Step 6: Final answer
    x = 986,469.60

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