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Finding the Fourth Proportional to 481,568.86, 664,508.05 and 277,686.77

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Solution

The fourth proportional to 481,568.86, 664,508.05 and 277,686.77 is: 383,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,568.86 : 664,508.05 = 277,686.77 : x
  2. Step 2: Convert to fraction form
    481,568.86/664,508.05 = 277,686.77/x
  3. Step 3: Cross multiply
    481,568.86x = 664,508.05 × 277,686.77
  4. Step 4: Simplify right side
    481,568.86x = 184,525,089,332.52
  5. Step 5: Solve for x
    x = 184,525,089,332.52/481,568.86
  6. Step 6: Final answer
    x = 383,174.88

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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.