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Finding the Fourth Proportional to 485,536,978.26, 727,992,331.32 and 190,461,913.03

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Solution

The fourth proportional to 485,536,978.26, 727,992,331.32 and 190,461,913.03 is: 285,570,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,536,978.26 : 727,992,331.32 = 190,461,913.03 : x
  2. Step 2: Convert to fraction form
    485,536,978.26/727,992,331.32 = 190,461,913.03/x
  3. Step 3: Cross multiply
    485,536,978.26x = 727,992,331.32 × 190,461,913.03
  4. Step 4: Simplify right side
    485,536,978.26x = 138,654,812,091,369,136
  5. Step 5: Solve for x
    x = 138,654,812,091,369,136/485,536,978.26
  6. Step 6: Final answer
    x = 285,570,035.45

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