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Finding the Fourth Proportional to 3,394,565.74, 4,684,621 and 1,866,789.10

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Solution

The fourth proportional to 3,394,565.74, 4,684,621 and 1,866,789.10 is: 2,576,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394,565.74 : 4,684,621 = 1,866,789.10 : x
  2. Step 2: Convert to fraction form
    3,394,565.74/4,684,621 = 1,866,789.10/x
  3. Step 3: Cross multiply
    3,394,565.74x = 4,684,621 × 1,866,789.10
  4. Step 4: Simplify right side
    3,394,565.74x = 8,745,199,420,431.10
  5. Step 5: Solve for x
    x = 8,745,199,420,431.10/3,394,565.74
  6. Step 6: Final answer
    x = 2,576,235.10

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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.