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Finding the Fourth Proportional to 300,443.46, 414,611.10 and 173,118.75

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Solution

The fourth proportional to 300,443.46, 414,611.10 and 173,118.75 is: 238,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,443.46 : 414,611.10 = 173,118.75 : x
  2. Step 2: Convert to fraction form
    300,443.46/414,611.10 = 173,118.75/x
  3. Step 3: Cross multiply
    300,443.46x = 414,611.10 × 173,118.75
  4. Step 4: Simplify right side
    300,443.46x = 71,776,955,368.13
  5. Step 5: Solve for x
    x = 71,776,955,368.13/300,443.46
  6. Step 6: Final answer
    x = 238,903.37

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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.