Home / 517,986.41-777,099.81-162,991.20

Finding the Fourth Proportional to 517,986.41, 777,099.81 and 162,991.20

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Solution

The fourth proportional to 517,986.41, 777,099.81 and 162,991.20 is: 244,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,986.41 : 777,099.81 = 162,991.20 : x
  2. Step 2: Convert to fraction form
    517,986.41/777,099.81 = 162,991.20/x
  3. Step 3: Cross multiply
    517,986.41x = 777,099.81 × 162,991.20
  4. Step 4: Simplify right side
    517,986.41x = 126,660,430,551.67
  5. Step 5: Solve for x
    x = 126,660,430,551.67/517,986.41
  6. Step 6: Final answer
    x = 244,524.62

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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.