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Finding the Fourth Proportional to 590,489.60, 885,734.40 and 291,027.20

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Solution

The fourth proportional to 590,489.60, 885,734.40 and 291,027.20 is: 436,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,489.60 : 885,734.40 = 291,027.20 : x
  2. Step 2: Convert to fraction form
    590,489.60/885,734.40 = 291,027.20/x
  3. Step 3: Cross multiply
    590,489.60x = 885,734.40 × 291,027.20
  4. Step 4: Simplify right side
    590,489.60x = 257,772,802,375.68
  5. Step 5: Solve for x
    x = 257,772,802,375.68/590,489.60
  6. Step 6: Final answer
    x = 436,540.80

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