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Finding the Fourth Proportional to 481,239.60, 664,051.92 and 277,356.48

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Solution

The fourth proportional to 481,239.60, 664,051.92 and 277,356.48 is: 382,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,239.60 : 664,051.92 = 277,356.48 : x
  2. Step 2: Convert to fraction form
    481,239.60/664,051.92 = 277,356.48/x
  3. Step 3: Cross multiply
    481,239.60x = 664,051.92 × 277,356.48
  4. Step 4: Simplify right side
    481,239.60x = 184,179,103,068.44
  5. Step 5: Solve for x
    x = 184,179,103,068.44/481,239.60
  6. Step 6: Final answer
    x = 382,718.10

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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.