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Finding the Fourth Proportional to 383,251.08, 528,898.47 and 219,937.46

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Solution

The fourth proportional to 383,251.08, 528,898.47 and 219,937.46 is: 303,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,251.08 : 528,898.47 = 219,937.46 : x
  2. Step 2: Convert to fraction form
    383,251.08/528,898.47 = 219,937.46/x
  3. Step 3: Cross multiply
    383,251.08x = 528,898.47 × 219,937.46
  4. Step 4: Simplify right side
    383,251.08x = 116,324,583,445.19
  5. Step 5: Solve for x
    x = 116,324,583,445.19/383,251.08
  6. Step 6: Final answer
    x = 303,520.56

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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.