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Finding the Fourth Proportional to 383,956.68, 529,965.61 and 222,863.63

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Solution

The fourth proportional to 383,956.68, 529,965.61 and 222,863.63 is: 307,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,956.68 : 529,965.61 = 222,863.63 : x
  2. Step 2: Convert to fraction form
    383,956.68/529,965.61 = 222,863.63/x
  3. Step 3: Cross multiply
    383,956.68x = 529,965.61 × 222,863.63
  4. Step 4: Simplify right side
    383,956.68x = 118,110,059,619.76
  5. Step 5: Solve for x
    x = 118,110,059,619.76/383,956.68
  6. Step 6: Final answer
    x = 307,612.98

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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.