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Finding the Fourth Proportional to 617,404.91, 926,273.61 and 317,722.12

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Solution

The fourth proportional to 617,404.91, 926,273.61 and 317,722.12 is: 476,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,404.91 : 926,273.61 = 317,722.12 : x
  2. Step 2: Convert to fraction form
    617,404.91/926,273.61 = 317,722.12/x
  3. Step 3: Cross multiply
    617,404.91x = 926,273.61 × 317,722.12
  4. Step 4: Simplify right side
    617,404.91x = 294,297,612,753.57
  5. Step 5: Solve for x
    x = 294,297,612,753.57/617,404.91
  6. Step 6: Final answer
    x = 476,668.73

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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.