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Finding the Fourth Proportional to 481,228.40, 664,243.25 and 277,415.64

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Solution

The fourth proportional to 481,228.40, 664,243.25 and 277,415.64 is: 382,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,228.40 : 664,243.25 = 277,415.64 : x
  2. Step 2: Convert to fraction form
    481,228.40/664,243.25 = 277,415.64/x
  3. Step 3: Cross multiply
    481,228.40x = 664,243.25 × 277,415.64
  4. Step 4: Simplify right side
    481,228.40x = 184,271,464,927.35
  5. Step 5: Solve for x
    x = 184,271,464,927.35/481,228.40
  6. Step 6: Final answer
    x = 382,918.94

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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.