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Finding the Fourth Proportional to 373,900.18, 515,979.62 and 204,134.30

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Solution

The fourth proportional to 373,900.18, 515,979.62 and 204,134.30 is: 281,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,900.18 : 515,979.62 = 204,134.30 : x
  2. Step 2: Convert to fraction form
    373,900.18/515,979.62 = 204,134.30/x
  3. Step 3: Cross multiply
    373,900.18x = 515,979.62 × 204,134.30
  4. Step 4: Simplify right side
    373,900.18x = 105,329,138,542.97
  5. Step 5: Solve for x
    x = 105,329,138,542.97/373,900.18
  6. Step 6: Final answer
    x = 281,703.90

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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.