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Finding the Fourth Proportional to 391,203,040.40, 586,804,560.60 and 361,641,798.80

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Solution

The fourth proportional to 391,203,040.40, 586,804,560.60 and 361,641,798.80 is: 542,462,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,040.40 : 586,804,560.60 = 361,641,798.80 : x
  2. Step 2: Convert to fraction form
    391,203,040.40/586,804,560.60 = 361,641,798.80/x
  3. Step 3: Cross multiply
    391,203,040.40x = 586,804,560.60 × 361,641,798.80
  4. Step 4: Simplify right side
    391,203,040.40x = 212,213,056,839,427,616
  5. Step 5: Solve for x
    x = 212,213,056,839,427,616/391,203,040.40
  6. Step 6: Final answer
    x = 542,462,698.20

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