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Finding the Fourth Proportional to 277,979.37, 417,430.34 and 173,462.64

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Solution

The fourth proportional to 277,979.37, 417,430.34 and 173,462.64 is: 260,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,979.37 : 417,430.34 = 173,462.64 : x
  2. Step 2: Convert to fraction form
    277,979.37/417,430.34 = 173,462.64/x
  3. Step 3: Cross multiply
    277,979.37x = 417,430.34 × 173,462.64
  4. Step 4: Simplify right side
    277,979.37x = 72,408,568,792.50
  5. Step 5: Solve for x
    x = 72,408,568,792.50/277,979.37
  6. Step 6: Final answer
    x = 260,481.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.