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Finding the Fourth Proportional to 355,231.46, 490,213.70 and 194,083.05

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Solution

The fourth proportional to 355,231.46, 490,213.70 and 194,083.05 is: 267,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,231.46 : 490,213.70 = 194,083.05 : x
  2. Step 2: Convert to fraction form
    355,231.46/490,213.70 = 194,083.05/x
  3. Step 3: Cross multiply
    355,231.46x = 490,213.70 × 194,083.05
  4. Step 4: Simplify right side
    355,231.46x = 95,142,169,029.53
  5. Step 5: Solve for x
    x = 95,142,169,029.53/355,231.46
  6. Step 6: Final answer
    x = 267,831.48

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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.