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Finding the Fourth Proportional to 1,321,695, 1,823,943.96 and 718,083

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Solution

The fourth proportional to 1,321,695, 1,823,943.96 and 718,083 is: 990,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,695 : 1,823,943.96 = 718,083 : x
  2. Step 2: Convert to fraction form
    1,321,695/1,823,943.96 = 718,083/x
  3. Step 3: Cross multiply
    1,321,695x = 1,823,943.96 × 718,083
  4. Step 4: Simplify right side
    1,321,695x = 1,309,743,150,628.68
  5. Step 5: Solve for x
    x = 1,309,743,150,628.68/1,321,695
  6. Step 6: Final answer
    x = 990,957.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.