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Finding the Fourth Proportional to 444,792.80, 667,189.20 and 411,987.80

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Solution

The fourth proportional to 444,792.80, 667,189.20 and 411,987.80 is: 617,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,792.80 : 667,189.20 = 411,987.80 : x
  2. Step 2: Convert to fraction form
    444,792.80/667,189.20 = 411,987.80/x
  3. Step 3: Cross multiply
    444,792.80x = 667,189.20 × 411,987.80
  4. Step 4: Simplify right side
    444,792.80x = 274,873,810,691.76
  5. Step 5: Solve for x
    x = 274,873,810,691.76/444,792.80
  6. Step 6: Final answer
    x = 617,981.70

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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.