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Finding the Fourth Proportional to 580,394.66, 800,944.64 and 325,745.85

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Solution

The fourth proportional to 580,394.66, 800,944.64 and 325,745.85 is: 449,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,394.66 : 800,944.64 = 325,745.85 : x
  2. Step 2: Convert to fraction form
    580,394.66/800,944.64 = 325,745.85/x
  3. Step 3: Cross multiply
    580,394.66x = 800,944.64 × 325,745.85
  4. Step 4: Simplify right side
    580,394.66x = 260,904,390,931.02
  5. Step 5: Solve for x
    x = 260,904,390,931.02/580,394.66
  6. Step 6: Final answer
    x = 449,529.28

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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.