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Finding the Fourth Proportional to 521,753.24, 786,183.78 and 429,059.68

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Solution

The fourth proportional to 521,753.24, 786,183.78 and 429,059.68 is: 646,512.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,753.24 : 786,183.78 = 429,059.68 : x
  2. Step 2: Convert to fraction form
    521,753.24/786,183.78 = 429,059.68/x
  3. Step 3: Cross multiply
    521,753.24x = 786,183.78 × 429,059.68
  4. Step 4: Simplify right side
    521,753.24x = 337,319,761,067.99
  5. Step 5: Solve for x
    x = 337,319,761,067.99/521,753.24
  6. Step 6: Final answer
    x = 646,512.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.