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Finding the Fourth Proportional to 397,266.40, 595,899.60 and 220,119.40

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Solution

The fourth proportional to 397,266.40, 595,899.60 and 220,119.40 is: 330,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,266.40 : 595,899.60 = 220,119.40 : x
  2. Step 2: Convert to fraction form
    397,266.40/595,899.60 = 220,119.40/x
  3. Step 3: Cross multiply
    397,266.40x = 595,899.60 × 220,119.40
  4. Step 4: Simplify right side
    397,266.40x = 131,169,062,412.24
  5. Step 5: Solve for x
    x = 131,169,062,412.24/397,266.40
  6. Step 6: Final answer
    x = 330,179.10

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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.