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Finding the Fourth Proportional to 303,823.20, 419,276.01 and 169,687.20

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Solution

The fourth proportional to 303,823.20, 419,276.01 and 169,687.20 is: 234,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,823.20 : 419,276.01 = 169,687.20 : x
  2. Step 2: Convert to fraction form
    303,823.20/419,276.01 = 169,687.20/x
  3. Step 3: Cross multiply
    303,823.20x = 419,276.01 × 169,687.20
  4. Step 4: Simplify right side
    303,823.20x = 71,145,772,164.07
  5. Step 5: Solve for x
    x = 71,145,772,164.07/303,823.20
  6. Step 6: Final answer
    x = 234,168.33

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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.