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Finding the Fourth Proportional to 863,747.10, 1,295,620.65 and 683,343.90

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Solution

The fourth proportional to 863,747.10, 1,295,620.65 and 683,343.90 is: 1,025,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,747.10 : 1,295,620.65 = 683,343.90 : x
  2. Step 2: Convert to fraction form
    863,747.10/1,295,620.65 = 683,343.90/x
  3. Step 3: Cross multiply
    863,747.10x = 1,295,620.65 × 683,343.90
  4. Step 4: Simplify right side
    863,747.10x = 885,354,467,891.54
  5. Step 5: Solve for x
    x = 885,354,467,891.54/863,747.10
  6. Step 6: Final answer
    x = 1,025,015.85

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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.