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Finding the Fourth Proportional to 654,396.40, 981,616.41 and 181,042.12

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Solution

The fourth proportional to 654,396.40, 981,616.41 and 181,042.12 is: 271,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,396.40 : 981,616.41 = 181,042.12 : x
  2. Step 2: Convert to fraction form
    654,396.40/981,616.41 = 181,042.12/x
  3. Step 3: Cross multiply
    654,396.40x = 981,616.41 × 181,042.12
  4. Step 4: Simplify right side
    654,396.40x = 177,713,915,893.19
  5. Step 5: Solve for x
    x = 177,713,915,893.19/654,396.40
  6. Step 6: Final answer
    x = 271,569.21

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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.