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Finding the Fourth Proportional to 324,411.98, 447,439.73 and 195,215.76

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Solution

The fourth proportional to 324,411.98, 447,439.73 and 195,215.76 is: 269,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,411.98 : 447,439.73 = 195,215.76 : x
  2. Step 2: Convert to fraction form
    324,411.98/447,439.73 = 195,215.76/x
  3. Step 3: Cross multiply
    324,411.98x = 447,439.73 × 195,215.76
  4. Step 4: Simplify right side
    324,411.98x = 87,347,285,970.07
  5. Step 5: Solve for x
    x = 87,347,285,970.07/324,411.98
  6. Step 6: Final answer
    x = 269,248.03

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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.