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Finding the Fourth Proportional to 381,954.56, 526,899.60 and 259,453.26

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Solution

The fourth proportional to 381,954.56, 526,899.60 and 259,453.26 is: 357,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,954.56 : 526,899.60 = 259,453.26 : x
  2. Step 2: Convert to fraction form
    381,954.56/526,899.60 = 259,453.26/x
  3. Step 3: Cross multiply
    381,954.56x = 526,899.60 × 259,453.26
  4. Step 4: Simplify right side
    381,954.56x = 136,705,818,912.70
  5. Step 5: Solve for x
    x = 136,705,818,912.70/381,954.56
  6. Step 6: Final answer
    x = 357,911.22

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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.