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Finding the Fourth Proportional to 300,858.46, 415,226.13 and 173,531.26

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Solution

The fourth proportional to 300,858.46, 415,226.13 and 173,531.26 is: 239,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,858.46 : 415,226.13 = 173,531.26 : x
  2. Step 2: Convert to fraction form
    300,858.46/415,226.13 = 173,531.26/x
  3. Step 3: Cross multiply
    300,858.46x = 415,226.13 × 173,531.26
  4. Step 4: Simplify right side
    300,858.46x = 72,054,713,523.82
  5. Step 5: Solve for x
    x = 72,054,713,523.82/300,858.46
  6. Step 6: Final answer
    x = 239,497.05

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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.