Home / 856,777.60-1,285,180.07-324,155.62

Finding the Fourth Proportional to 856,777.60, 1,285,180.07 and 324,155.62

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Solution

The fourth proportional to 856,777.60, 1,285,180.07 and 324,155.62 is: 486,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,777.60 : 1,285,180.07 = 324,155.62 : x
  2. Step 2: Convert to fraction form
    856,777.60/1,285,180.07 = 324,155.62/x
  3. Step 3: Cross multiply
    856,777.60x = 1,285,180.07 × 324,155.62
  4. Step 4: Simplify right side
    856,777.60x = 416,598,344,211.57
  5. Step 5: Solve for x
    x = 416,598,344,211.57/856,777.60
  6. Step 6: Final answer
    x = 486,238.60

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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.