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Finding the Fourth Proportional to 344,366.43, 515,690.55 and 217,624.31

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Solution

The fourth proportional to 344,366.43, 515,690.55 and 217,624.31 is: 325,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,366.43 : 515,690.55 = 217,624.31 : x
  2. Step 2: Convert to fraction form
    344,366.43/515,690.55 = 217,624.31/x
  3. Step 3: Cross multiply
    344,366.43x = 515,690.55 × 217,624.31
  4. Step 4: Simplify right side
    344,366.43x = 112,226,797,538.82
  5. Step 5: Solve for x
    x = 112,226,797,538.82/344,366.43
  6. Step 6: Final answer
    x = 325,893.55

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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.