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Finding the Fourth Proportional to 317,469.34, 438,244.34 and 194,981.56

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Solution

The fourth proportional to 317,469.34, 438,244.34 and 194,981.56 is: 269,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,469.34 : 438,244.34 = 194,981.56 : x
  2. Step 2: Convert to fraction form
    317,469.34/438,244.34 = 194,981.56/x
  3. Step 3: Cross multiply
    317,469.34x = 438,244.34 × 194,981.56
  4. Step 4: Simplify right side
    317,469.34x = 85,449,565,074.37
  5. Step 5: Solve for x
    x = 85,449,565,074.37/317,469.34
  6. Step 6: Final answer
    x = 269,158.48

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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.