Home / 319,893.20-479,840.44-83,235.52

Finding the Fourth Proportional to 319,893.20, 479,840.44 and 83,235.52

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Solution

The fourth proportional to 319,893.20, 479,840.44 and 83,235.52 is: 124,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,893.20 : 479,840.44 = 83,235.52 : x
  2. Step 2: Convert to fraction form
    319,893.20/479,840.44 = 83,235.52/x
  3. Step 3: Cross multiply
    319,893.20x = 479,840.44 × 83,235.52
  4. Step 4: Simplify right side
    319,893.20x = 39,939,768,540.43
  5. Step 5: Solve for x
    x = 39,939,768,540.43/319,893.20
  6. Step 6: Final answer
    x = 124,853.45

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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.