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Finding the Fourth Proportional to 424,132.78, 585,288.39 and 233,144.80

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Solution

The fourth proportional to 424,132.78, 585,288.39 and 233,144.80 is: 321,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,132.78 : 585,288.39 = 233,144.80 : x
  2. Step 2: Convert to fraction form
    424,132.78/585,288.39 = 233,144.80/x
  3. Step 3: Cross multiply
    424,132.78x = 585,288.39 × 233,144.80
  4. Step 4: Simplify right side
    424,132.78x = 136,456,944,628.87
  5. Step 5: Solve for x
    x = 136,456,944,628.87/424,132.78
  6. Step 6: Final answer
    x = 321,731.66

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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.