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Finding the Fourth Proportional to 400,130.40, 599,389.20 and 249,909.60

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Solution

The fourth proportional to 400,130.40, 599,389.20 and 249,909.60 is: 374,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,130.40 : 599,389.20 = 249,909.60 : x
  2. Step 2: Convert to fraction form
    400,130.40/599,389.20 = 249,909.60/x
  3. Step 3: Cross multiply
    400,130.40x = 599,389.20 × 249,909.60
  4. Step 4: Simplify right side
    400,130.40x = 149,793,115,216.32
  5. Step 5: Solve for x
    x = 149,793,115,216.32/400,130.40
  6. Step 6: Final answer
    x = 374,360.75

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