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Finding the Fourth Proportional to 381,606.44, 526,560.90 and 211,841.96

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Solution

The fourth proportional to 381,606.44, 526,560.90 and 211,841.96 is: 292,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,606.44 : 526,560.90 = 211,841.96 : x
  2. Step 2: Convert to fraction form
    381,606.44/526,560.90 = 211,841.96/x
  3. Step 3: Cross multiply
    381,606.44x = 526,560.90 × 211,841.96
  4. Step 4: Simplify right side
    381,606.44x = 111,547,693,115.36
  5. Step 5: Solve for x
    x = 111,547,693,115.36/381,606.44
  6. Step 6: Final answer
    x = 292,310.82

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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.