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Finding the Fourth Proportional to 713,691.60, 1,069,630.20 and 292,491.60

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Solution

The fourth proportional to 713,691.60, 1,069,630.20 and 292,491.60 is: 438,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,691.60 : 1,069,630.20 = 292,491.60 : x
  2. Step 2: Convert to fraction form
    713,691.60/1,069,630.20 = 292,491.60/x
  3. Step 3: Cross multiply
    713,691.60x = 1,069,630.20 × 292,491.60
  4. Step 4: Simplify right side
    713,691.60x = 312,857,848,606.32
  5. Step 5: Solve for x
    x = 312,857,848,606.32/713,691.60
  6. Step 6: Final answer
    x = 438,365.60

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