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Finding the Fourth Proportional to 579,907.00, 800,233.20 and 321,767.58

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Solution

The fourth proportional to 579,907.00, 800,233.20 and 321,767.58 is: 444,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,907.00 : 800,233.20 = 321,767.58 : x
  2. Step 2: Convert to fraction form
    579,907.00/800,233.20 = 321,767.58/x
  3. Step 3: Cross multiply
    579,907.00x = 800,233.20 × 321,767.58
  4. Step 4: Simplify right side
    579,907.00x = 257,489,100,199.66
  5. Step 5: Solve for x
    x = 257,489,100,199.66/579,907.00
  6. Step 6: Final answer
    x = 444,017.92

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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.