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Finding the Fourth Proportional to 3,879,650.54, 5,819,475.88 and 1,183,989.56

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Solution

The fourth proportional to 3,879,650.54, 5,819,475.88 and 1,183,989.56 is: 1,775,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,650.54 : 5,819,475.88 = 1,183,989.56 : x
  2. Step 2: Convert to fraction form
    3,879,650.54/5,819,475.88 = 1,183,989.56/x
  3. Step 3: Cross multiply
    3,879,650.54x = 5,819,475.88 × 1,183,989.56
  4. Step 4: Simplify right side
    3,879,650.54x = 6,890,198,686,591.81
  5. Step 5: Solve for x
    x = 6,890,198,686,591.81/3,879,650.54
  6. Step 6: Final answer
    x = 1,775,984.36

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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.