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Finding the Fourth Proportional to 1,682,575.71, 2,321,942.33 and 918,629.27

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Solution

The fourth proportional to 1,682,575.71, 2,321,942.33 and 918,629.27 is: 1,267,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,575.71 : 2,321,942.33 = 918,629.27 : x
  2. Step 2: Convert to fraction form
    1,682,575.71/2,321,942.33 = 918,629.27/x
  3. Step 3: Cross multiply
    1,682,575.71x = 2,321,942.33 × 918,629.27
  4. Step 4: Simplify right side
    1,682,575.71x = 2,133,004,186,984.14
  5. Step 5: Solve for x
    x = 2,133,004,186,984.14/1,682,575.71
  6. Step 6: Final answer
    x = 1,267,701.76

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Why These Related Problems?

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