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Finding the Fourth Proportional to 424,243.92, 585,441.60 and 233,255.80

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Solution

The fourth proportional to 424,243.92, 585,441.60 and 233,255.80 is: 321,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,243.92 : 585,441.60 = 233,255.80 : x
  2. Step 2: Convert to fraction form
    424,243.92/585,441.60 = 233,255.80/x
  3. Step 3: Cross multiply
    424,243.92x = 585,441.60 × 233,255.80
  4. Step 4: Simplify right side
    424,243.92x = 136,557,648,761.28
  5. Step 5: Solve for x
    x = 136,557,648,761.28/424,243.92
  6. Step 6: Final answer
    x = 321,884.75

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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.