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Finding the Fourth Proportional to 324,439.71, 447,713.25 and 186,608.15

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Solution

The fourth proportional to 324,439.71, 447,713.25 and 186,608.15 is: 257,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,439.71 : 447,713.25 = 186,608.15 : x
  2. Step 2: Convert to fraction form
    324,439.71/447,713.25 = 186,608.15/x
  3. Step 3: Cross multiply
    324,439.71x = 447,713.25 × 186,608.15
  4. Step 4: Simplify right side
    324,439.71x = 83,546,943,096.79
  5. Step 5: Solve for x
    x = 83,546,943,096.79/324,439.71
  6. Step 6: Final answer
    x = 257,511.46

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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.