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Finding the Fourth Proportional to 424,145.25, 585,321.66 and 242,859.96

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Solution

The fourth proportional to 424,145.25, 585,321.66 and 242,859.96 is: 335,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,145.25 : 585,321.66 = 242,859.96 : x
  2. Step 2: Convert to fraction form
    424,145.25/585,321.66 = 242,859.96/x
  3. Step 3: Cross multiply
    424,145.25x = 585,321.66 × 242,859.96
  4. Step 4: Simplify right side
    424,145.25x = 142,151,194,934.73
  5. Step 5: Solve for x
    x = 142,151,194,934.73/424,145.25
  6. Step 6: Final answer
    x = 335,147.44

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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.