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Finding the Fourth Proportional to 544,033.20, 815,819.40 and 263,636.40

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Solution

The fourth proportional to 544,033.20, 815,819.40 and 263,636.40 is: 395,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,033.20 : 815,819.40 = 263,636.40 : x
  2. Step 2: Convert to fraction form
    544,033.20/815,819.40 = 263,636.40/x
  3. Step 3: Cross multiply
    544,033.20x = 815,819.40 × 263,636.40
  4. Step 4: Simplify right side
    544,033.20x = 215,079,689,666.16
  5. Step 5: Solve for x
    x = 215,079,689,666.16/544,033.20
  6. Step 6: Final answer
    x = 395,342.95

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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.