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Finding the Fourth Proportional to 431,530.54, 595,767.30 and 383,651.39

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Solution

The fourth proportional to 431,530.54, 595,767.30 and 383,651.39 is: 529,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,530.54 : 595,767.30 = 383,651.39 : x
  2. Step 2: Convert to fraction form
    431,530.54/595,767.30 = 383,651.39/x
  3. Step 3: Cross multiply
    431,530.54x = 595,767.30 × 383,651.39
  4. Step 4: Simplify right side
    431,530.54x = 228,566,951,619.12
  5. Step 5: Solve for x
    x = 228,566,951,619.12/431,530.54
  6. Step 6: Final answer
    x = 529,665.76

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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.