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Finding the Fourth Proportional to 432,129.60, 648,194.40 and 357,334.20

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Solution

The fourth proportional to 432,129.60, 648,194.40 and 357,334.20 is: 536,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,129.60 : 648,194.40 = 357,334.20 : x
  2. Step 2: Convert to fraction form
    432,129.60/648,194.40 = 357,334.20/x
  3. Step 3: Cross multiply
    432,129.60x = 648,194.40 × 357,334.20
  4. Step 4: Simplify right side
    432,129.60x = 231,622,027,368.48
  5. Step 5: Solve for x
    x = 231,622,027,368.48/432,129.60
  6. Step 6: Final answer
    x = 536,001.30

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