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Finding the Fourth Proportional to 619,919.88, 929,879.82 and 245,942.88

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Solution

The fourth proportional to 619,919.88, 929,879.82 and 245,942.88 is: 368,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,919.88 : 929,879.82 = 245,942.88 : x
  2. Step 2: Convert to fraction form
    619,919.88/929,879.82 = 245,942.88/x
  3. Step 3: Cross multiply
    619,919.88x = 929,879.82 × 245,942.88
  4. Step 4: Simplify right side
    619,919.88x = 228,697,320,984.68
  5. Step 5: Solve for x
    x = 228,697,320,984.68/619,919.88
  6. Step 6: Final answer
    x = 368,914.32

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1.5x scale

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.