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Finding the Fourth Proportional to 336,707,081.70, 505,060,622.55 and 221,821,347.30

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Solution

The fourth proportional to 336,707,081.70, 505,060,622.55 and 221,821,347.30 is: 332,732,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,707,081.70 : 505,060,622.55 = 221,821,347.30 : x
  2. Step 2: Convert to fraction form
    336,707,081.70/505,060,622.55 = 221,821,347.30/x
  3. Step 3: Cross multiply
    336,707,081.70x = 505,060,622.55 × 221,821,347.30
  4. Step 4: Simplify right side
    336,707,081.70x = 112,033,227,762,217,776
  5. Step 5: Solve for x
    x = 112,033,227,762,217,776/336,707,081.70
  6. Step 6: Final answer
    x = 332,732,020.95

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