Home / 639,232.20-958,965.12-496,231.56

Finding the Fourth Proportional to 639,232.20, 958,965.12 and 496,231.56

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Solution

The fourth proportional to 639,232.20, 958,965.12 and 496,231.56 is: 744,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,232.20 : 958,965.12 = 496,231.56 : x
  2. Step 2: Convert to fraction form
    639,232.20/958,965.12 = 496,231.56/x
  3. Step 3: Cross multiply
    639,232.20x = 958,965.12 × 496,231.56
  4. Step 4: Simplify right side
    639,232.20x = 475,868,757,483.19
  5. Step 5: Solve for x
    x = 475,868,757,483.19/639,232.20
  6. Step 6: Final answer
    x = 744,438.03

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Double scale
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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.