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Finding the Fourth Proportional to 394,367.72, 544,196.58 and 224,568.68

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Solution

The fourth proportional to 394,367.72, 544,196.58 and 224,568.68 is: 309,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,367.72 : 544,196.58 = 224,568.68 : x
  2. Step 2: Convert to fraction form
    394,367.72/544,196.58 = 224,568.68/x
  3. Step 3: Cross multiply
    394,367.72x = 544,196.58 × 224,568.68
  4. Step 4: Simplify right side
    394,367.72x = 122,209,507,631.11
  5. Step 5: Solve for x
    x = 122,209,507,631.11/394,367.72
  6. Step 6: Final answer
    x = 309,887.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.