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Finding the Fourth Proportional to 580,070.44, 800,485.14 and 321,932.40

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Solution

The fourth proportional to 580,070.44, 800,485.14 and 321,932.40 is: 444,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,070.44 : 800,485.14 = 321,932.40 : x
  2. Step 2: Convert to fraction form
    580,070.44/800,485.14 = 321,932.40/x
  3. Step 3: Cross multiply
    580,070.44x = 800,485.14 × 321,932.40
  4. Step 4: Simplify right side
    580,070.44x = 257,702,102,284.54
  5. Step 5: Solve for x
    x = 257,702,102,284.54/580,070.44
  6. Step 6: Final answer
    x = 444,260.01

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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.