Home / 385,183.92-531,627.36-258,081.12

Finding the Fourth Proportional to 385,183.92, 531,627.36 and 258,081.12

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Solution

The fourth proportional to 385,183.92, 531,627.36 and 258,081.12 is: 356,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,183.92 : 531,627.36 = 258,081.12 : x
  2. Step 2: Convert to fraction form
    385,183.92/531,627.36 = 258,081.12/x
  3. Step 3: Cross multiply
    385,183.92x = 531,627.36 × 258,081.12
  4. Step 4: Simplify right side
    385,183.92x = 137,202,984,491.44
  5. Step 5: Solve for x
    x = 137,202,984,491.44/385,183.92
  6. Step 6: Final answer
    x = 356,201.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.