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Finding the Fourth Proportional to 411,545.30, 617,317.95 and 367,999.70

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Solution

The fourth proportional to 411,545.30, 617,317.95 and 367,999.70 is: 551,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,545.30 : 617,317.95 = 367,999.70 : x
  2. Step 2: Convert to fraction form
    411,545.30/617,317.95 = 367,999.70/x
  3. Step 3: Cross multiply
    411,545.30x = 617,317.95 × 367,999.70
  4. Step 4: Simplify right side
    411,545.30x = 227,172,820,404.62
  5. Step 5: Solve for x
    x = 227,172,820,404.62/411,545.30
  6. Step 6: Final answer
    x = 551,999.55

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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.