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Finding the Fourth Proportional to 592,940.08, 818,251.44 and 321,000.80

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Solution

The fourth proportional to 592,940.08, 818,251.44 and 321,000.80 is: 442,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,940.08 : 818,251.44 = 321,000.80 : x
  2. Step 2: Convert to fraction form
    592,940.08/818,251.44 = 321,000.80/x
  3. Step 3: Cross multiply
    592,940.08x = 818,251.44 × 321,000.80
  4. Step 4: Simplify right side
    592,940.08x = 262,659,366,841.15
  5. Step 5: Solve for x
    x = 262,659,366,841.15/592,940.08
  6. Step 6: Final answer
    x = 442,977.93

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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.