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Finding the Fourth Proportional to 424,979.28, 637,233 and 197,025.84

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Solution

The fourth proportional to 424,979.28, 637,233 and 197,025.84 is: 295,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,979.28 : 637,233 = 197,025.84 : x
  2. Step 2: Convert to fraction form
    424,979.28/637,233 = 197,025.84/x
  3. Step 3: Cross multiply
    424,979.28x = 637,233 × 197,025.84
  4. Step 4: Simplify right side
    424,979.28x = 125,551,367,100.72
  5. Step 5: Solve for x
    x = 125,551,367,100.72/424,979.28
  6. Step 6: Final answer
    x = 295,429.38

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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.