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Finding the Fourth Proportional to 553,272,743.20, 830,865,708.60 and 294,992,417.20

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Solution

The fourth proportional to 553,272,743.20, 830,865,708.60 and 294,992,417.20 is: 442,998,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,272,743.20 : 830,865,708.60 = 294,992,417.20 : x
  2. Step 2: Convert to fraction form
    553,272,743.20/830,865,708.60 = 294,992,417.20/x
  3. Step 3: Cross multiply
    553,272,743.20x = 830,865,708.60 × 294,992,417.20
  4. Step 4: Simplify right side
    553,272,743.20x = 245,099,083,748,504,832
  5. Step 5: Solve for x
    x = 245,099,083,748,504,832/553,272,743.20
  6. Step 6: Final answer
    x = 442,998,659.81

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