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Finding the Fourth Proportional to 412,636.66, 568,780.63 and 325,279.31

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Solution

The fourth proportional to 412,636.66, 568,780.63 and 325,279.31 is: 448,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,636.66 : 568,780.63 = 325,279.31 : x
  2. Step 2: Convert to fraction form
    412,636.66/568,780.63 = 325,279.31/x
  3. Step 3: Cross multiply
    412,636.66x = 568,780.63 × 325,279.31
  4. Step 4: Simplify right side
    412,636.66x = 185,012,572,542.98
  5. Step 5: Solve for x
    x = 185,012,572,542.98/412,636.66
  6. Step 6: Final answer
    x = 448,366.78

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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.