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Finding the Fourth Proportional to 358,105.20, 537,406.20 and 269,545.20

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Solution

The fourth proportional to 358,105.20, 537,406.20 and 269,545.20 is: 404,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,105.20 : 537,406.20 = 269,545.20 : x
  2. Step 2: Convert to fraction form
    358,105.20/537,406.20 = 269,545.20/x
  3. Step 3: Cross multiply
    358,105.20x = 537,406.20 × 269,545.20
  4. Step 4: Simplify right side
    358,105.20x = 144,855,261,660.24
  5. Step 5: Solve for x
    x = 144,855,261,660.24/358,105.20
  6. Step 6: Final answer
    x = 404,504.77

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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.