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Finding the Fourth Proportional to 3,942,887.28, 5,914,337.40 and 951,071.28

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Solution

The fourth proportional to 3,942,887.28, 5,914,337.40 and 951,071.28 is: 1,426,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,887.28 : 5,914,337.40 = 951,071.28 : x
  2. Step 2: Convert to fraction form
    3,942,887.28/5,914,337.40 = 951,071.28/x
  3. Step 3: Cross multiply
    3,942,887.28x = 5,914,337.40 × 951,071.28
  4. Step 4: Simplify right side
    3,942,887.28x = 5,624,956,441,369.87
  5. Step 5: Solve for x
    x = 5,624,956,441,369.87/3,942,887.28
  6. Step 6: Final answer
    x = 1,426,608.48

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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.