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Finding the Fourth Proportional to 5,143,458.92, 7,715,509.08 and 1,356,945.44

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Solution

The fourth proportional to 5,143,458.92, 7,715,509.08 and 1,356,945.44 is: 2,035,502.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143,458.92 : 7,715,509.08 = 1,356,945.44 : x
  2. Step 2: Convert to fraction form
    5,143,458.92/7,715,509.08 = 1,356,945.44/x
  3. Step 3: Cross multiply
    5,143,458.92x = 7,715,509.08 × 1,356,945.44
  4. Step 4: Simplify right side
    5,143,458.92x = 10,469,524,863,384.60
  5. Step 5: Solve for x
    x = 10,469,524,863,384.60/5,143,458.92
  6. Step 6: Final answer
    x = 2,035,502.77

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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.