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Finding the Fourth Proportional to 303,768.47, 419,319.99 and 200,386.23

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Solution

The fourth proportional to 303,768.47, 419,319.99 and 200,386.23 is: 276,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,768.47 : 419,319.99 = 200,386.23 : x
  2. Step 2: Convert to fraction form
    303,768.47/419,319.99 = 200,386.23/x
  3. Step 3: Cross multiply
    303,768.47x = 419,319.99 × 200,386.23
  4. Step 4: Simplify right side
    303,768.47x = 84,025,951,959.74
  5. Step 5: Solve for x
    x = 84,025,951,959.74/303,768.47
  6. Step 6: Final answer
    x = 276,611.83

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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.