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Finding the Fourth Proportional to 422,063.34, 582,447.13 and 231,076.68

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Solution

The fourth proportional to 422,063.34, 582,447.13 and 231,076.68 is: 318,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,063.34 : 582,447.13 = 231,076.68 : x
  2. Step 2: Convert to fraction form
    422,063.34/582,447.13 = 231,076.68/x
  3. Step 3: Cross multiply
    422,063.34x = 582,447.13 × 231,076.68
  4. Step 4: Simplify right side
    422,063.34x = 134,589,949,075.93
  5. Step 5: Solve for x
    x = 134,589,949,075.93/422,063.34
  6. Step 6: Final answer
    x = 318,885.67

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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.