Home / 642,183.20-962,983.20-242,691.20

Finding the Fourth Proportional to 642,183.20, 962,983.20 and 242,691.20

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Solution

The fourth proportional to 642,183.20, 962,983.20 and 242,691.20 is: 363,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,183.20 : 962,983.20 = 242,691.20 : x
  2. Step 2: Convert to fraction form
    642,183.20/962,983.20 = 242,691.20/x
  3. Step 3: Cross multiply
    642,183.20x = 962,983.20 × 242,691.20
  4. Step 4: Simplify right side
    642,183.20x = 233,707,548,387.84
  5. Step 5: Solve for x
    x = 233,707,548,387.84/642,183.20
  6. Step 6: Final answer
    x = 363,926.60

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Double scale
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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.