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Finding the Fourth Proportional to 481,840.57, 665,010.80 and 277,851.65

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Solution

The fourth proportional to 481,840.57, 665,010.80 and 277,851.65 is: 383,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,840.57 : 665,010.80 = 277,851.65 : x
  2. Step 2: Convert to fraction form
    481,840.57/665,010.80 = 277,851.65/x
  3. Step 3: Cross multiply
    481,840.57x = 665,010.80 × 277,851.65
  4. Step 4: Simplify right side
    481,840.57x = 184,774,347,201.78
  5. Step 5: Solve for x
    x = 184,774,347,201.78/481,840.57
  6. Step 6: Final answer
    x = 383,476.11

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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.