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Finding the Fourth Proportional to 326,312.22, 489,409.92 and 207,631.02

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Solution

The fourth proportional to 326,312.22, 489,409.92 and 207,631.02 is: 311,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,312.22 : 489,409.92 = 207,631.02 : x
  2. Step 2: Convert to fraction form
    326,312.22/489,409.92 = 207,631.02/x
  3. Step 3: Cross multiply
    326,312.22x = 489,409.92 × 207,631.02
  4. Step 4: Simplify right side
    326,312.22x = 101,616,680,887.72
  5. Step 5: Solve for x
    x = 101,616,680,887.72/326,312.22
  6. Step 6: Final answer
    x = 311,409.36

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