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Finding the Fourth Proportional to 835,862.16, 1,254,005.46 and 386,906.88

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Solution

The fourth proportional to 835,862.16, 1,254,005.46 and 386,906.88 is: 580,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,862.16 : 1,254,005.46 = 386,906.88 : x
  2. Step 2: Convert to fraction form
    835,862.16/1,254,005.46 = 386,906.88/x
  3. Step 3: Cross multiply
    835,862.16x = 1,254,005.46 × 386,906.88
  4. Step 4: Simplify right side
    835,862.16x = 485,183,340,031.57
  5. Step 5: Solve for x
    x = 485,183,340,031.57/835,862.16
  6. Step 6: Final answer
    x = 580,458.55

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