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Finding the Fourth Proportional to 453,746.40, 680,619.60 and 312,028.80

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Solution

The fourth proportional to 453,746.40, 680,619.60 and 312,028.80 is: 468,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,746.40 : 680,619.60 = 312,028.80 : x
  2. Step 2: Convert to fraction form
    453,746.40/680,619.60 = 312,028.80/x
  3. Step 3: Cross multiply
    453,746.40x = 680,619.60 × 312,028.80
  4. Step 4: Simplify right side
    453,746.40x = 212,372,917,044.48
  5. Step 5: Solve for x
    x = 212,372,917,044.48/453,746.40
  6. Step 6: Final answer
    x = 468,043.20

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