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Finding the Fourth Proportional to 406,808.10, 610,212.15 and 217,851.30

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Solution

The fourth proportional to 406,808.10, 610,212.15 and 217,851.30 is: 326,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,808.10 : 610,212.15 = 217,851.30 : x
  2. Step 2: Convert to fraction form
    406,808.10/610,212.15 = 217,851.30/x
  3. Step 3: Cross multiply
    406,808.10x = 610,212.15 × 217,851.30
  4. Step 4: Simplify right side
    406,808.10x = 132,935,510,153.30
  5. Step 5: Solve for x
    x = 132,935,510,153.30/406,808.10
  6. Step 6: Final answer
    x = 326,776.95

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