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Finding the Fourth Proportional to 324,555.40, 486,717.90 and 224,715.40

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Solution

The fourth proportional to 324,555.40, 486,717.90 and 224,715.40 is: 336,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,555.40 : 486,717.90 = 224,715.40 : x
  2. Step 2: Convert to fraction form
    324,555.40/486,717.90 = 224,715.40/x
  3. Step 3: Cross multiply
    324,555.40x = 486,717.90 × 224,715.40
  4. Step 4: Simplify right side
    324,555.40x = 109,373,007,585.66
  5. Step 5: Solve for x
    x = 109,373,007,585.66/324,555.40
  6. Step 6: Final answer
    x = 336,993.34

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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.