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Finding the Fourth Proportional to 304,448.49, 419,861.41 and 261,414.49

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Solution

The fourth proportional to 304,448.49, 419,861.41 and 261,414.49 is: 360,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,448.49 : 419,861.41 = 261,414.49 : x
  2. Step 2: Convert to fraction form
    304,448.49/419,861.41 = 261,414.49/x
  3. Step 3: Cross multiply
    304,448.49x = 419,861.41 × 261,414.49
  4. Step 4: Simplify right side
    304,448.49x = 109,757,852,959.45
  5. Step 5: Solve for x
    x = 109,757,852,959.45/304,448.49
  6. Step 6: Final answer
    x = 360,513.70

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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.