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Finding the Fourth Proportional to 411,545.45, 617,318.18 and 366,930.65

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Solution

The fourth proportional to 411,545.45, 617,318.18 and 366,930.65 is: 550,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,545.45 : 617,318.18 = 366,930.65 : x
  2. Step 2: Convert to fraction form
    411,545.45/617,318.18 = 366,930.65/x
  3. Step 3: Cross multiply
    411,545.45x = 617,318.18 × 366,930.65
  4. Step 4: Simplify right side
    411,545.45x = 226,512,959,209.56
  5. Step 5: Solve for x
    x = 226,512,959,209.56/411,545.45
  6. Step 6: Final answer
    x = 550,395.98

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Similar ratio
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1.5x scale

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.