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Finding the Fourth Proportional to 424,257.54, 585,485.41 and 230,676.31

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Solution

The fourth proportional to 424,257.54, 585,485.41 and 230,676.31 is: 318,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,257.54 : 585,485.41 = 230,676.31 : x
  2. Step 2: Convert to fraction form
    424,257.54/585,485.41 = 230,676.31/x
  3. Step 3: Cross multiply
    424,257.54x = 585,485.41 × 230,676.31
  4. Step 4: Simplify right side
    424,257.54x = 135,057,613,937.64
  5. Step 5: Solve for x
    x = 135,057,613,937.64/424,257.54
  6. Step 6: Final answer
    x = 318,338.75

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Half scale
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Double scale
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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.