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Finding the Fourth Proportional to 456,670.40, 685,005.60 and 207,352.40

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Solution

The fourth proportional to 456,670.40, 685,005.60 and 207,352.40 is: 311,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,670.40 : 685,005.60 = 207,352.40 : x
  2. Step 2: Convert to fraction form
    456,670.40/685,005.60 = 207,352.40/x
  3. Step 3: Cross multiply
    456,670.40x = 685,005.60 × 207,352.40
  4. Step 4: Simplify right side
    456,670.40x = 142,037,555,173.44
  5. Step 5: Solve for x
    x = 142,037,555,173.44/456,670.40
  6. Step 6: Final answer
    x = 311,028.60

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