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Finding the Fourth Proportional to 293,415.40, 404,871.78 and 166,083.40

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Solution

The fourth proportional to 293,415.40, 404,871.78 and 166,083.40 is: 229,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,415.40 : 404,871.78 = 166,083.40 : x
  2. Step 2: Convert to fraction form
    293,415.40/404,871.78 = 166,083.40/x
  3. Step 3: Cross multiply
    293,415.40x = 404,871.78 × 166,083.40
  4. Step 4: Simplify right side
    293,415.40x = 67,242,481,786.45
  5. Step 5: Solve for x
    x = 67,242,481,786.45/293,415.40
  6. Step 6: Final answer
    x = 229,171.62

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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.