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Finding the Fourth Proportional to 555,729.26, 766,907.18 and 301,080.44

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Solution

The fourth proportional to 555,729.26, 766,907.18 and 301,080.44 is: 415,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,729.26 : 766,907.18 = 301,080.44 : x
  2. Step 2: Convert to fraction form
    555,729.26/766,907.18 = 301,080.44/x
  3. Step 3: Cross multiply
    555,729.26x = 766,907.18 × 301,080.44
  4. Step 4: Simplify right side
    555,729.26x = 230,900,745,853.62
  5. Step 5: Solve for x
    x = 230,900,745,853.62/555,729.26
  6. Step 6: Final answer
    x = 415,491.44

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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.