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Finding the Fourth Proportional to 3,579,446.34, 4,939,636.65 and 1,969,814.34

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Solution

The fourth proportional to 3,579,446.34, 4,939,636.65 and 1,969,814.34 is: 2,718,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579,446.34 : 4,939,636.65 = 1,969,814.34 : x
  2. Step 2: Convert to fraction form
    3,579,446.34/4,939,636.65 = 1,969,814.34/x
  3. Step 3: Cross multiply
    3,579,446.34x = 4,939,636.65 × 1,969,814.34
  4. Step 4: Simplify right side
    3,579,446.34x = 9,730,167,107,559.56
  5. Step 5: Solve for x
    x = 9,730,167,107,559.56/3,579,446.34
  6. Step 6: Final answer
    x = 2,718,344.17

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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.