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Finding the Fourth Proportional to 576,408.30, 795,410.46 and 321,775.62

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Solution

The fourth proportional to 576,408.30, 795,410.46 and 321,775.62 is: 444,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,408.30 : 795,410.46 = 321,775.62 : x
  2. Step 2: Convert to fraction form
    576,408.30/795,410.46 = 321,775.62/x
  3. Step 3: Cross multiply
    576,408.30x = 795,410.46 × 321,775.62
  4. Step 4: Simplify right side
    576,408.30x = 255,943,693,920.99
  5. Step 5: Solve for x
    x = 255,943,693,920.99/576,408.30
  6. Step 6: Final answer
    x = 444,031.94

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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.