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Finding the Fourth Proportional to 434,368.20, 651,552.30 and 418,621.80

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Solution

The fourth proportional to 434,368.20, 651,552.30 and 418,621.80 is: 627,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,368.20 : 651,552.30 = 418,621.80 : x
  2. Step 2: Convert to fraction form
    434,368.20/651,552.30 = 418,621.80/x
  3. Step 3: Cross multiply
    434,368.20x = 651,552.30 × 418,621.80
  4. Step 4: Simplify right side
    434,368.20x = 272,753,996,620.14
  5. Step 5: Solve for x
    x = 272,753,996,620.14/434,368.20
  6. Step 6: Final answer
    x = 627,932.70

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