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Finding the Fourth Proportional to 381,554.87, 526,519.37 and 211,775.63

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Solution

The fourth proportional to 381,554.87, 526,519.37 and 211,775.63 is: 292,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,554.87 : 526,519.37 = 211,775.63 : x
  2. Step 2: Convert to fraction form
    381,554.87/526,519.37 = 211,775.63/x
  3. Step 3: Cross multiply
    381,554.87x = 526,519.37 × 211,775.63
  4. Step 4: Simplify right side
    381,554.87x = 111,503,969,185.80
  5. Step 5: Solve for x
    x = 111,503,969,185.80/381,554.87
  6. Step 6: Final answer
    x = 292,235.74

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1.5x scale

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.