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Finding the Fourth Proportional to 3,951,816.75, 5,927,739.71 and 960,000.75

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Solution

The fourth proportional to 3,951,816.75, 5,927,739.71 and 960,000.75 is: 1,440,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951,816.75 : 5,927,739.71 = 960,000.75 : x
  2. Step 2: Convert to fraction form
    3,951,816.75/5,927,739.71 = 960,000.75/x
  3. Step 3: Cross multiply
    3,951,816.75x = 5,927,739.71 × 960,000.75
  4. Step 4: Simplify right side
    3,951,816.75x = 5,690,634,562,604.78
  5. Step 5: Solve for x
    x = 5,690,634,562,604.78/3,951,816.75
  6. Step 6: Final answer
    x = 1,440,004.67

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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.