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Finding the Fourth Proportional to 509,304,831.20, 763,957,246.80 and 509,304,831.20

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Solution

The fourth proportional to 509,304,831.20, 763,957,246.80 and 509,304,831.20 is: 763,957,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,304,831.20 : 763,957,246.80 = 509,304,831.20 : x
  2. Step 2: Convert to fraction form
    509,304,831.20/763,957,246.80 = 509,304,831.20/x
  3. Step 3: Cross multiply
    509,304,831.20x = 763,957,246.80 × 509,304,831.20
  4. Step 4: Simplify right side
    509,304,831.20x = 389,087,116,625,490,688
  5. Step 5: Solve for x
    x = 389,087,116,625,490,688/509,304,831.20
  6. Step 6: Final answer
    x = 763,957,246.80

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