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Finding the Fourth Proportional to 332,639.92, 499,315.20 and 143,194.15

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Solution

The fourth proportional to 332,639.92, 499,315.20 and 143,194.15 is: 214,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,639.92 : 499,315.20 = 143,194.15 : x
  2. Step 2: Convert to fraction form
    332,639.92/499,315.20 = 143,194.15/x
  3. Step 3: Cross multiply
    332,639.92x = 499,315.20 × 143,194.15
  4. Step 4: Simplify right side
    332,639.92x = 71,499,015,646.08
  5. Step 5: Solve for x
    x = 71,499,015,646.08/332,639.92
  6. Step 6: Final answer
    x = 214,944.18

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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.