Home / 639,029.70-958,544.55-189,819.90

Finding the Fourth Proportional to 639,029.70, 958,544.55 and 189,819.90

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Solution

The fourth proportional to 639,029.70, 958,544.55 and 189,819.90 is: 284,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,029.70 : 958,544.55 = 189,819.90 : x
  2. Step 2: Convert to fraction form
    639,029.70/958,544.55 = 189,819.90/x
  3. Step 3: Cross multiply
    639,029.70x = 958,544.55 × 189,819.90
  4. Step 4: Simplify right side
    639,029.70x = 181,950,830,626.55
  5. Step 5: Solve for x
    x = 181,950,830,626.55/639,029.70
  6. Step 6: Final answer
    x = 284,729.85

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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.