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Finding the Fourth Proportional to 558,879.36, 771,133.92 and 332,480.64

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Solution

The fourth proportional to 558,879.36, 771,133.92 and 332,480.64 is: 458,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,879.36 : 771,133.92 = 332,480.64 : x
  2. Step 2: Convert to fraction form
    558,879.36/771,133.92 = 332,480.64/x
  3. Step 3: Cross multiply
    558,879.36x = 771,133.92 × 332,480.64
  4. Step 4: Simplify right side
    558,879.36x = 256,387,099,247.31
  5. Step 5: Solve for x
    x = 256,387,099,247.31/558,879.36
  6. Step 6: Final answer
    x = 458,752.13

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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.