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Finding the Fourth Proportional to 1,951,511.86, 2,928,949.30 and 1,352,893.39

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Solution

The fourth proportional to 1,951,511.86, 2,928,949.30 and 1,352,893.39 is: 2,030,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951,511.86 : 2,928,949.30 = 1,352,893.39 : x
  2. Step 2: Convert to fraction form
    1,951,511.86/2,928,949.30 = 1,352,893.39/x
  3. Step 3: Cross multiply
    1,951,511.86x = 2,928,949.30 × 1,352,893.39
  4. Step 4: Simplify right side
    1,951,511.86x = 3,962,556,147,615.13
  5. Step 5: Solve for x
    x = 3,962,556,147,615.13/1,951,511.86
  6. Step 6: Final answer
    x = 2,030,505.80

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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.