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Finding the Fourth Proportional to 3,949,131.38, 5,923,697.06 and 957,315.38

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Solution

The fourth proportional to 3,949,131.38, 5,923,697.06 and 957,315.38 is: 1,435,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949,131.38 : 5,923,697.06 = 957,315.38 : x
  2. Step 2: Convert to fraction form
    3,949,131.38/5,923,697.06 = 957,315.38/x
  3. Step 3: Cross multiply
    3,949,131.38x = 5,923,697.06 × 957,315.38
  4. Step 4: Simplify right side
    3,949,131.38x = 5,670,846,274,773.59
  5. Step 5: Solve for x
    x = 5,670,846,274,773.59/3,949,131.38
  6. Step 6: Final answer
    x = 1,435,973.06

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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.