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Finding the Fourth Proportional to 886,872.60, 1,330,308.90 and 326,309.40

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Solution

The fourth proportional to 886,872.60, 1,330,308.90 and 326,309.40 is: 489,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,872.60 : 1,330,308.90 = 326,309.40 : x
  2. Step 2: Convert to fraction form
    886,872.60/1,330,308.90 = 326,309.40/x
  3. Step 3: Cross multiply
    886,872.60x = 1,330,308.90 × 326,309.40
  4. Step 4: Simplify right side
    886,872.60x = 434,092,298,973.66
  5. Step 5: Solve for x
    x = 434,092,298,973.66/886,872.60
  6. Step 6: Final answer
    x = 489,464.10

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