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Finding the Fourth Proportional to 1,789,709.86, 2,469,800.04 and 984,893.86

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Solution

The fourth proportional to 1,789,709.86, 2,469,800.04 and 984,893.86 is: 1,359,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,709.86 : 2,469,800.04 = 984,893.86 : x
  2. Step 2: Convert to fraction form
    1,789,709.86/2,469,800.04 = 984,893.86/x
  3. Step 3: Cross multiply
    1,789,709.86x = 2,469,800.04 × 984,893.86
  4. Step 4: Simplify right side
    1,789,709.86x = 2,432,490,894,823.75
  5. Step 5: Solve for x
    x = 2,432,490,894,823.75/1,789,709.86
  6. Step 6: Final answer
    x = 1,359,153.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.