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Finding the Fourth Proportional to 331,069, 456,843.63 and 185,841.54

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Solution

The fourth proportional to 331,069, 456,843.63 and 185,841.54 is: 256,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,069 : 456,843.63 = 185,841.54 : x
  2. Step 2: Convert to fraction form
    331,069/456,843.63 = 185,841.54/x
  3. Step 3: Cross multiply
    331,069x = 456,843.63 × 185,841.54
  4. Step 4: Simplify right side
    331,069x = 84,900,523,738.39
  5. Step 5: Solve for x
    x = 84,900,523,738.39/331,069
  6. Step 6: Final answer
    x = 256,443.59

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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.