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Finding the Fourth Proportional to 482,426.82, 664,980.03 and 380,285.82

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Solution

The fourth proportional to 482,426.82, 664,980.03 and 380,285.82 is: 524,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,426.82 : 664,980.03 = 380,285.82 : x
  2. Step 2: Convert to fraction form
    482,426.82/664,980.03 = 380,285.82/x
  3. Step 3: Cross multiply
    482,426.82x = 664,980.03 × 380,285.82
  4. Step 4: Simplify right side
    482,426.82x = 252,882,475,992.18
  5. Step 5: Solve for x
    x = 252,882,475,992.18/482,426.82
  6. Step 6: Final answer
    x = 524,188.26

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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.