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Finding the Fourth Proportional to 415,286.64, 573,100.92 and 245,519.28

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Solution

The fourth proportional to 415,286.64, 573,100.92 and 245,519.28 is: 338,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,286.64 : 573,100.92 = 245,519.28 : x
  2. Step 2: Convert to fraction form
    415,286.64/573,100.92 = 245,519.28/x
  3. Step 3: Cross multiply
    415,286.64x = 573,100.92 × 245,519.28
  4. Step 4: Simplify right side
    415,286.64x = 140,707,325,245.74
  5. Step 5: Solve for x
    x = 140,707,325,245.74/415,286.64
  6. Step 6: Final answer
    x = 338,819.77

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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.