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Finding the Fourth Proportional to 3,950,808.26, 5,926,776.40 and 1,218,585.64

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Solution

The fourth proportional to 3,950,808.26, 5,926,776.40 and 1,218,585.64 is: 1,828,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950,808.26 : 5,926,776.40 = 1,218,585.64 : x
  2. Step 2: Convert to fraction form
    3,950,808.26/5,926,776.40 = 1,218,585.64/x
  3. Step 3: Cross multiply
    3,950,808.26x = 5,926,776.40 × 1,218,585.64
  4. Step 4: Simplify right side
    3,950,808.26x = 7,222,284,612,530.90
  5. Step 5: Solve for x
    x = 7,222,284,612,530.90/3,950,808.26
  6. Step 6: Final answer
    x = 1,828,052.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.