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Finding the Fourth Proportional to 324,858.60, 487,287.90 and 114,517.80

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Solution

The fourth proportional to 324,858.60, 487,287.90 and 114,517.80 is: 171,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,858.60 : 487,287.90 = 114,517.80 : x
  2. Step 2: Convert to fraction form
    324,858.60/487,287.90 = 114,517.80/x
  3. Step 3: Cross multiply
    324,858.60x = 487,287.90 × 114,517.80
  4. Step 4: Simplify right side
    324,858.60x = 55,803,138,274.62
  5. Step 5: Solve for x
    x = 55,803,138,274.62/324,858.60
  6. Step 6: Final answer
    x = 171,776.70

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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.