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Finding the Fourth Proportional to 322,624.40, 483,936.60 and 204,429.20

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Solution

The fourth proportional to 322,624.40, 483,936.60 and 204,429.20 is: 306,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,624.40 : 483,936.60 = 204,429.20 : x
  2. Step 2: Convert to fraction form
    322,624.40/483,936.60 = 204,429.20/x
  3. Step 3: Cross multiply
    322,624.40x = 483,936.60 × 204,429.20
  4. Step 4: Simplify right side
    322,624.40x = 98,930,771,988.72
  5. Step 5: Solve for x
    x = 98,930,771,988.72/322,624.40
  6. Step 6: Final answer
    x = 306,643.80

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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.