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Finding the Fourth Proportional to 576,195.12, 795,172.68 and 321,539.76

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Solution

The fourth proportional to 576,195.12, 795,172.68 and 321,539.76 is: 443,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,195.12 : 795,172.68 = 321,539.76 : x
  2. Step 2: Convert to fraction form
    576,195.12/795,172.68 = 321,539.76/x
  3. Step 3: Cross multiply
    576,195.12x = 795,172.68 × 321,539.76
  4. Step 4: Simplify right side
    576,195.12x = 255,679,632,685.76
  5. Step 5: Solve for x
    x = 255,679,632,685.76/576,195.12
  6. Step 6: Final answer
    x = 443,737.93

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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.