Home / 619,928.62-929,005.66-353,137.90

Finding the Fourth Proportional to 619,928.62, 929,005.66 and 353,137.90

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Solution

The fourth proportional to 619,928.62, 929,005.66 and 353,137.90 is: 529,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,928.62 : 929,005.66 = 353,137.90 : x
  2. Step 2: Convert to fraction form
    619,928.62/929,005.66 = 353,137.90/x
  3. Step 3: Cross multiply
    619,928.62x = 929,005.66 × 353,137.90
  4. Step 4: Simplify right side
    619,928.62x = 328,067,107,860.51
  5. Step 5: Solve for x
    x = 328,067,107,860.51/619,928.62
  6. Step 6: Final answer
    x = 529,201.42

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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.