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Finding the Fourth Proportional to 381,760.62, 526,830.60 and 211,994.74

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Solution

The fourth proportional to 381,760.62, 526,830.60 and 211,994.74 is: 292,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,760.62 : 526,830.60 = 211,994.74 : x
  2. Step 2: Convert to fraction form
    381,760.62/526,830.60 = 211,994.74/x
  3. Step 3: Cross multiply
    381,760.62x = 526,830.60 × 211,994.74
  4. Step 4: Simplify right side
    381,760.62x = 111,685,316,071.04
  5. Step 5: Solve for x
    x = 111,685,316,071.04/381,760.62
  6. Step 6: Final answer
    x = 292,553.27

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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.