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Finding the Fourth Proportional to 324,858.81, 487,288.22 and 158,504.25

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Solution

The fourth proportional to 324,858.81, 487,288.22 and 158,504.25 is: 237,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,858.81 : 487,288.22 = 158,504.25 : x
  2. Step 2: Convert to fraction form
    324,858.81/487,288.22 = 158,504.25/x
  3. Step 3: Cross multiply
    324,858.81x = 487,288.22 × 158,504.25
  4. Step 4: Simplify right side
    324,858.81x = 77,237,253,052.41
  5. Step 5: Solve for x
    x = 77,237,253,052.41/324,858.81
  6. Step 6: Final answer
    x = 237,756.38

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.