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Finding the Fourth Proportional to 381,572.62, 526,543.87 and 211,793.38

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Solution

The fourth proportional to 381,572.62, 526,543.87 and 211,793.38 is: 292,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,572.62 : 526,543.87 = 211,793.38 : x
  2. Step 2: Convert to fraction form
    381,572.62/526,543.87 = 211,793.38/x
  3. Step 3: Cross multiply
    381,572.62x = 526,543.87 × 211,793.38
  4. Step 4: Simplify right side
    381,572.62x = 111,518,502,253.89
  5. Step 5: Solve for x
    x = 111,518,502,253.89/381,572.62
  6. Step 6: Final answer
    x = 292,260.24

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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.