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Finding the Fourth Proportional to 404,593.80, 606,890.70 and 254,346.90

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Solution

The fourth proportional to 404,593.80, 606,890.70 and 254,346.90 is: 381,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,593.80 : 606,890.70 = 254,346.90 : x
  2. Step 2: Convert to fraction form
    404,593.80/606,890.70 = 254,346.90/x
  3. Step 3: Cross multiply
    404,593.80x = 606,890.70 × 254,346.90
  4. Step 4: Simplify right side
    404,593.80x = 154,360,768,183.83
  5. Step 5: Solve for x
    x = 154,360,768,183.83/404,593.80
  6. Step 6: Final answer
    x = 381,520.35

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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.