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Finding the Fourth Proportional to 481,709.49, 723,671.85 and 339,881.61

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Solution

The fourth proportional to 481,709.49, 723,671.85 and 339,881.61 is: 510,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,709.49 : 723,671.85 = 339,881.61 : x
  2. Step 2: Convert to fraction form
    481,709.49/723,671.85 = 339,881.61/x
  3. Step 3: Cross multiply
    481,709.49x = 723,671.85 × 339,881.61
  4. Step 4: Simplify right side
    481,709.49x = 245,962,753,489.68
  5. Step 5: Solve for x
    x = 245,962,753,489.68/481,709.49
  6. Step 6: Final answer
    x = 510,603.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.