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Finding the Fourth Proportional to 324,679.89, 448,056.95 and 181,439.90

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Solution

The fourth proportional to 324,679.89, 448,056.95 and 181,439.90 is: 250,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,679.89 : 448,056.95 = 181,439.90 : x
  2. Step 2: Convert to fraction form
    324,679.89/448,056.95 = 181,439.90/x
  3. Step 3: Cross multiply
    324,679.89x = 448,056.95 × 181,439.90
  4. Step 4: Simplify right side
    324,679.89x = 81,295,405,962.02
  5. Step 5: Solve for x
    x = 81,295,405,962.02/324,679.89
  6. Step 6: Final answer
    x = 250,386.33

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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.