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Finding the Fourth Proportional to 389,346.60, 584,019.90 and 264,930.60

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Solution

The fourth proportional to 389,346.60, 584,019.90 and 264,930.60 is: 397,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,346.60 : 584,019.90 = 264,930.60 : x
  2. Step 2: Convert to fraction form
    389,346.60/584,019.90 = 264,930.60/x
  3. Step 3: Cross multiply
    389,346.60x = 584,019.90 × 264,930.60
  4. Step 4: Simplify right side
    389,346.60x = 154,724,742,518.94
  5. Step 5: Solve for x
    x = 154,724,742,518.94/389,346.60
  6. Step 6: Final answer
    x = 397,395.90

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