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Finding the Fourth Proportional to 412,830.80, 619,246.20 and 369,528.20

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Solution

The fourth proportional to 412,830.80, 619,246.20 and 369,528.20 is: 554,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,830.80 : 619,246.20 = 369,528.20 : x
  2. Step 2: Convert to fraction form
    412,830.80/619,246.20 = 369,528.20/x
  3. Step 3: Cross multiply
    412,830.80x = 619,246.20 × 369,528.20
  4. Step 4: Simplify right side
    412,830.80x = 228,828,933,642.84
  5. Step 5: Solve for x
    x = 228,828,933,642.84/412,830.80
  6. Step 6: Final answer
    x = 554,292.30

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