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Finding the Fourth Proportional to 481,385.07, 664,318.40 and 277,323.39

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Solution

The fourth proportional to 481,385.07, 664,318.40 and 277,323.39 is: 382,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,385.07 : 664,318.40 = 277,323.39 : x
  2. Step 2: Convert to fraction form
    481,385.07/664,318.40 = 277,323.39/x
  3. Step 3: Cross multiply
    481,385.07x = 664,318.40 × 277,323.39
  4. Step 4: Simplify right side
    481,385.07x = 184,231,029,340.76
  5. Step 5: Solve for x
    x = 184,231,029,340.76/481,385.07
  6. Step 6: Final answer
    x = 382,710.31

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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.