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Finding the Fourth Proportional to 324,840.60, 487,260.90 and 310,843.80

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Solution

The fourth proportional to 324,840.60, 487,260.90 and 310,843.80 is: 466,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,840.60 : 487,260.90 = 310,843.80 : x
  2. Step 2: Convert to fraction form
    324,840.60/487,260.90 = 310,843.80/x
  3. Step 3: Cross multiply
    324,840.60x = 487,260.90 × 310,843.80
  4. Step 4: Simplify right side
    324,840.60x = 151,462,029,747.42
  5. Step 5: Solve for x
    x = 151,462,029,747.42/324,840.60
  6. Step 6: Final answer
    x = 466,265.70

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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.