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Finding the Fourth Proportional to 707,843.26, 977,037.15 and 481,619.98

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Solution

The fourth proportional to 707,843.26, 977,037.15 and 481,619.98 is: 664,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,843.26 : 977,037.15 = 481,619.98 : x
  2. Step 2: Convert to fraction form
    707,843.26/977,037.15 = 481,619.98/x
  3. Step 3: Cross multiply
    707,843.26x = 977,037.15 × 481,619.98
  4. Step 4: Simplify right side
    707,843.26x = 470,560,612,642.26
  5. Step 5: Solve for x
    x = 470,560,612,642.26/707,843.26
  6. Step 6: Final answer
    x = 664,780.81

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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.