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Finding the Fourth Proportional to 381,896.44, 526,947.60 and 220,692.40

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Solution

The fourth proportional to 381,896.44, 526,947.60 and 220,692.40 is: 304,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,896.44 : 526,947.60 = 220,692.40 : x
  2. Step 2: Convert to fraction form
    381,896.44/526,947.60 = 220,692.40/x
  3. Step 3: Cross multiply
    381,896.44x = 526,947.60 × 220,692.40
  4. Step 4: Simplify right side
    381,896.44x = 116,293,330,518.24
  5. Step 5: Solve for x
    x = 116,293,330,518.24/381,896.44
  6. Step 6: Final answer
    x = 304,515.36

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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.