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Finding the Fourth Proportional to 411,532.70, 617,299.05 and 366,917.90

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Solution

The fourth proportional to 411,532.70, 617,299.05 and 366,917.90 is: 550,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,532.70 : 617,299.05 = 366,917.90 : x
  2. Step 2: Convert to fraction form
    411,532.70/617,299.05 = 366,917.90/x
  3. Step 3: Cross multiply
    411,532.70x = 617,299.05 × 366,917.90
  4. Step 4: Simplify right side
    411,532.70x = 226,498,071,098.00
  5. Step 5: Solve for x
    x = 226,498,071,098.00/411,532.70
  6. Step 6: Final answer
    x = 550,376.85

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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.