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Finding the Fourth Proportional to 441,121.80, 661,682.70 and 400,443.60

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Solution

The fourth proportional to 441,121.80, 661,682.70 and 400,443.60 is: 600,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,121.80 : 661,682.70 = 400,443.60 : x
  2. Step 2: Convert to fraction form
    441,121.80/661,682.70 = 400,443.60/x
  3. Step 3: Cross multiply
    441,121.80x = 661,682.70 × 400,443.60
  4. Step 4: Simplify right side
    441,121.80x = 264,966,602,445.72
  5. Step 5: Solve for x
    x = 264,966,602,445.72/441,121.80
  6. Step 6: Final answer
    x = 600,665.40

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