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Finding the Fourth Proportional to 1,894,453.29, 2,839,765.17 and 815,669.52

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Solution

The fourth proportional to 1,894,453.29, 2,839,765.17 and 815,669.52 is: 1,222,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894,453.29 : 2,839,765.17 = 815,669.52 : x
  2. Step 2: Convert to fraction form
    1,894,453.29/2,839,765.17 = 815,669.52/x
  3. Step 3: Cross multiply
    1,894,453.29x = 2,839,765.17 × 815,669.52
  4. Step 4: Simplify right side
    1,894,453.29x = 2,316,309,893,126.62
  5. Step 5: Solve for x
    x = 2,316,309,893,126.62/1,894,453.29
  6. Step 6: Final answer
    x = 1,222,679.87

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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.