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Finding the Fourth Proportional to 309,387.94, 464,231.22 and 169,142.92

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Solution

The fourth proportional to 309,387.94, 464,231.22 and 169,142.92 is: 253,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,387.94 : 464,231.22 = 169,142.92 : x
  2. Step 2: Convert to fraction form
    309,387.94/464,231.22 = 169,142.92/x
  3. Step 3: Cross multiply
    309,387.94x = 464,231.22 × 169,142.92
  4. Step 4: Simplify right side
    309,387.94x = 78,521,424,105.96
  5. Step 5: Solve for x
    x = 78,521,424,105.96/309,387.94
  6. Step 6: Final answer
    x = 253,796.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.