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Finding the Fourth Proportional to 355,401.10, 532,324.05 and 214,914.70

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Solution

The fourth proportional to 355,401.10, 532,324.05 and 214,914.70 is: 321,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,401.10 : 532,324.05 = 214,914.70 : x
  2. Step 2: Convert to fraction form
    355,401.10/532,324.05 = 214,914.70/x
  3. Step 3: Cross multiply
    355,401.10x = 532,324.05 × 214,914.70
  4. Step 4: Simplify right side
    355,401.10x = 114,404,263,508.54
  5. Step 5: Solve for x
    x = 114,404,263,508.54/355,401.10
  6. Step 6: Final answer
    x = 321,901.83

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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.