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Finding the Fourth Proportional to 381,572.37, 526,269.42 and 338,011.52

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Solution

The fourth proportional to 381,572.37, 526,269.42 and 338,011.52 is: 466,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,572.37 : 526,269.42 = 338,011.52 : x
  2. Step 2: Convert to fraction form
    381,572.37/526,269.42 = 338,011.52/x
  3. Step 3: Cross multiply
    381,572.37x = 526,269.42 × 338,011.52
  4. Step 4: Simplify right side
    381,572.37x = 177,885,123,952.37
  5. Step 5: Solve for x
    x = 177,885,123,952.37/381,572.37
  6. Step 6: Final answer
    x = 466,189.74

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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.