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Finding the Fourth Proportional to 324,040.40, 446,996.04 and 189,878.48

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Solution

The fourth proportional to 324,040.40, 446,996.04 and 189,878.48 is: 261,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,040.40 : 446,996.04 = 189,878.48 : x
  2. Step 2: Convert to fraction form
    324,040.40/446,996.04 = 189,878.48/x
  3. Step 3: Cross multiply
    324,040.40x = 446,996.04 × 189,878.48
  4. Step 4: Simplify right side
    324,040.40x = 84,874,928,641.22
  5. Step 5: Solve for x
    x = 84,874,928,641.22/324,040.40
  6. Step 6: Final answer
    x = 261,927.00

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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.