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Finding the Fourth Proportional to 322,415.40, 483,623.10 and 204,220.20

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Solution

The fourth proportional to 322,415.40, 483,623.10 and 204,220.20 is: 306,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,415.40 : 483,623.10 = 204,220.20 : x
  2. Step 2: Convert to fraction form
    322,415.40/483,623.10 = 204,220.20/x
  3. Step 3: Cross multiply
    322,415.40x = 483,623.10 × 204,220.20
  4. Step 4: Simplify right side
    322,415.40x = 98,765,606,206.62
  5. Step 5: Solve for x
    x = 98,765,606,206.62/322,415.40
  6. Step 6: Final answer
    x = 306,330.30

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Double scale
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Similar ratio
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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.