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Finding the Fourth Proportional to 383,614.04, 529,283.52 and 218,039.69

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Solution

The fourth proportional to 383,614.04, 529,283.52 and 218,039.69 is: 300,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,614.04 : 529,283.52 = 218,039.69 : x
  2. Step 2: Convert to fraction form
    383,614.04/529,283.52 = 218,039.69/x
  3. Step 3: Cross multiply
    383,614.04x = 529,283.52 × 218,039.69
  4. Step 4: Simplify right side
    383,614.04x = 115,404,811,976.49
  5. Step 5: Solve for x
    x = 115,404,811,976.49/383,614.04
  6. Step 6: Final answer
    x = 300,835.74

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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.