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Finding the Fourth Proportional to 324,558.40, 486,722.40 and 224,718.40

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Solution

The fourth proportional to 324,558.40, 486,722.40 and 224,718.40 is: 336,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,558.40 : 486,722.40 = 224,718.40 : x
  2. Step 2: Convert to fraction form
    324,558.40/486,722.40 = 224,718.40/x
  3. Step 3: Cross multiply
    324,558.40x = 486,722.40 × 224,718.40
  4. Step 4: Simplify right side
    324,558.40x = 109,375,478,972.16
  5. Step 5: Solve for x
    x = 109,375,478,972.16/324,558.40
  6. Step 6: Final answer
    x = 336,997.84

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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.