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Finding the Fourth Proportional to 414,991.39, 572,680.34 and 253,834.60

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Solution

The fourth proportional to 414,991.39, 572,680.34 and 253,834.60 is: 350,286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,991.39 : 572,680.34 = 253,834.60 : x
  2. Step 2: Convert to fraction form
    414,991.39/572,680.34 = 253,834.60/x
  3. Step 3: Cross multiply
    414,991.39x = 572,680.34 × 253,834.60
  4. Step 4: Simplify right side
    414,991.39x = 145,366,083,282.77
  5. Step 5: Solve for x
    x = 145,366,083,282.77/414,991.39
  6. Step 6: Final answer
    x = 350,286.99

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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.