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Finding the Fourth Proportional to 652,191,331.40, 978,286,997.10 and 445,567,070.60

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Solution

The fourth proportional to 652,191,331.40, 978,286,997.10 and 445,567,070.60 is: 668,350,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,191,331.40 : 978,286,997.10 = 445,567,070.60 : x
  2. Step 2: Convert to fraction form
    652,191,331.40/978,286,997.10 = 445,567,070.60/x
  3. Step 3: Cross multiply
    652,191,331.40x = 978,286,997.10 × 445,567,070.60
  4. Step 4: Simplify right side
    652,191,331.40x = 435,892,471,503,917,760
  5. Step 5: Solve for x
    x = 435,892,471,503,917,760/652,191,331.40
  6. Step 6: Final answer
    x = 668,350,605.90

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