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Finding the Fourth Proportional to 3,388,955.22, 4,676,788.53 and 1,861,073.28

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Solution

The fourth proportional to 3,388,955.22, 4,676,788.53 and 1,861,073.28 is: 2,568,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388,955.22 : 4,676,788.53 = 1,861,073.28 : x
  2. Step 2: Convert to fraction form
    3,388,955.22/4,676,788.53 = 1,861,073.28/x
  3. Step 3: Cross multiply
    3,388,955.22x = 4,676,788.53 × 1,861,073.28
  4. Step 4: Simplify right side
    3,388,955.22x = 8,703,846,169,393.48
  5. Step 5: Solve for x
    x = 8,703,846,169,393.48/3,388,955.22
  6. Step 6: Final answer
    x = 2,568,297.78

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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.