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Finding the Fourth Proportional to 393,196.80, 590,232.60 and 216,049.80

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Solution

The fourth proportional to 393,196.80, 590,232.60 and 216,049.80 is: 324,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,196.80 : 590,232.60 = 216,049.80 : x
  2. Step 2: Convert to fraction form
    393,196.80/590,232.60 = 216,049.80/x
  3. Step 3: Cross multiply
    393,196.80x = 590,232.60 × 216,049.80
  4. Step 4: Simplify right side
    393,196.80x = 127,519,635,183.48
  5. Step 5: Solve for x
    x = 127,519,635,183.48/393,196.80
  6. Step 6: Final answer
    x = 324,315.04

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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.