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Finding the Fourth Proportional to 322,297.20, 482,927.40 and 203,756.40

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Solution

The fourth proportional to 322,297.20, 482,927.40 and 203,756.40 is: 305,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,297.20 : 482,927.40 = 203,756.40 : x
  2. Step 2: Convert to fraction form
    322,297.20/482,927.40 = 203,756.40/x
  3. Step 3: Cross multiply
    322,297.20x = 482,927.40 × 203,756.40
  4. Step 4: Simplify right side
    322,297.20x = 98,399,548,485.36
  5. Step 5: Solve for x
    x = 98,399,548,485.36/322,297.20
  6. Step 6: Final answer
    x = 305,306.87

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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.