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Finding the Fourth Proportional to 5,686,993.92, 8,530,490.94 and 1,900,476.78

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Solution

The fourth proportional to 5,686,993.92, 8,530,490.94 and 1,900,476.78 is: 2,850,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686,993.92 : 8,530,490.94 = 1,900,476.78 : x
  2. Step 2: Convert to fraction form
    5,686,993.92/8,530,490.94 = 1,900,476.78/x
  3. Step 3: Cross multiply
    5,686,993.92x = 8,530,490.94 × 1,900,476.78
  4. Step 4: Simplify right side
    5,686,993.92x = 16,211,999,953,470.37
  5. Step 5: Solve for x
    x = 16,211,999,953,470.37/5,686,993.92
  6. Step 6: Final answer
    x = 2,850,715.19

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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.