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Finding the Fourth Proportional to 516,630,699.88, 712,955,930.34 and 281,679,443.08

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Solution

The fourth proportional to 516,630,699.88, 712,955,930.34 and 281,679,443.08 is: 388,720,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,630,699.88 : 712,955,930.34 = 281,679,443.08 : x
  2. Step 2: Convert to fraction form
    516,630,699.88/712,955,930.34 = 281,679,443.08/x
  3. Step 3: Cross multiply
    516,630,699.88x = 712,955,930.34 × 281,679,443.08
  4. Step 4: Simplify right side
    516,630,699.88x = 200,825,029,398,754,464
  5. Step 5: Solve for x
    x = 200,825,029,398,754,464/516,630,699.88
  6. Step 6: Final answer
    x = 388,720,665.35

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