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Finding the Fourth Proportional to 292,419.60, 438,629.40 and 192,692.40

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Solution

The fourth proportional to 292,419.60, 438,629.40 and 192,692.40 is: 289,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,419.60 : 438,629.40 = 192,692.40 : x
  2. Step 2: Convert to fraction form
    292,419.60/438,629.40 = 192,692.40/x
  3. Step 3: Cross multiply
    292,419.60x = 438,629.40 × 192,692.40
  4. Step 4: Simplify right side
    292,419.60x = 84,520,551,796.56
  5. Step 5: Solve for x
    x = 84,520,551,796.56/292,419.60
  6. Step 6: Final answer
    x = 289,038.60

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