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Finding the Fourth Proportional to 340,553.43, 469,472.83 and 238,261.97

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Solution

The fourth proportional to 340,553.43, 469,472.83 and 238,261.97 is: 328,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,553.43 : 469,472.83 = 238,261.97 : x
  2. Step 2: Convert to fraction form
    340,553.43/469,472.83 = 238,261.97/x
  3. Step 3: Cross multiply
    340,553.43x = 469,472.83 × 238,261.97
  4. Step 4: Simplify right side
    340,553.43x = 111,857,521,915.30
  5. Step 5: Solve for x
    x = 111,857,521,915.30/340,553.43
  6. Step 6: Final answer
    x = 328,458.07

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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.