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Finding the Fourth Proportional to 355,213.98, 490,202.34 and 194,079.03

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Solution

The fourth proportional to 355,213.98, 490,202.34 and 194,079.03 is: 267,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,213.98 : 490,202.34 = 194,079.03 : x
  2. Step 2: Convert to fraction form
    355,213.98/490,202.34 = 194,079.03/x
  3. Step 3: Cross multiply
    355,213.98x = 490,202.34 × 194,079.03
  4. Step 4: Simplify right side
    355,213.98x = 95,137,994,650.93
  5. Step 5: Solve for x
    x = 95,137,994,650.93/355,213.98
  6. Step 6: Final answer
    x = 267,832.91

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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.