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Finding the Fourth Proportional to 3,949,139.76, 5,923,709.64 and 957,323.76

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Solution

The fourth proportional to 3,949,139.76, 5,923,709.64 and 957,323.76 is: 1,435,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949,139.76 : 5,923,709.64 = 957,323.76 : x
  2. Step 2: Convert to fraction form
    3,949,139.76/5,923,709.64 = 957,323.76/x
  3. Step 3: Cross multiply
    3,949,139.76x = 5,923,709.64 × 957,323.76
  4. Step 4: Simplify right side
    3,949,139.76x = 5,670,907,985,713.05
  5. Step 5: Solve for x
    x = 5,670,907,985,713.05/3,949,139.76
  6. Step 6: Final answer
    x = 1,435,985.64

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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.