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Finding the Fourth Proportional to 355,849.20, 532,996.20 and 276,339.60

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Solution

The fourth proportional to 355,849.20, 532,996.20 and 276,339.60 is: 413,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,849.20 : 532,996.20 = 276,339.60 : x
  2. Step 2: Convert to fraction form
    355,849.20/532,996.20 = 276,339.60/x
  3. Step 3: Cross multiply
    355,849.20x = 532,996.20 × 276,339.60
  4. Step 4: Simplify right side
    355,849.20x = 147,287,956,709.52
  5. Step 5: Solve for x
    x = 147,287,956,709.52/355,849.20
  6. Step 6: Final answer
    x = 413,905.54

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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.