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Finding the Fourth Proportional to 1,764,728.75, 2,647,214.73 and 739,026.29

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Solution

The fourth proportional to 1,764,728.75, 2,647,214.73 and 739,026.29 is: 1,108,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,728.75 : 2,647,214.73 = 739,026.29 : x
  2. Step 2: Convert to fraction form
    1,764,728.75/2,647,214.73 = 739,026.29/x
  3. Step 3: Cross multiply
    1,764,728.75x = 2,647,214.73 × 739,026.29
  4. Step 4: Simplify right side
    1,764,728.75x = 1,956,361,287,363.29
  5. Step 5: Solve for x
    x = 1,956,361,287,363.29/1,764,728.75
  6. Step 6: Final answer
    x = 1,108,590.36

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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.