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Finding the Fourth Proportional to 560,145.56, 773,067.30 and 318,464.60

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Solution

The fourth proportional to 560,145.56, 773,067.30 and 318,464.60 is: 439,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,145.56 : 773,067.30 = 318,464.60 : x
  2. Step 2: Convert to fraction form
    560,145.56/773,067.30 = 318,464.60/x
  3. Step 3: Cross multiply
    560,145.56x = 773,067.30 × 318,464.60
  4. Step 4: Simplify right side
    560,145.56x = 246,194,568,467.58
  5. Step 5: Solve for x
    x = 246,194,568,467.58/560,145.56
  6. Step 6: Final answer
    x = 439,518.91

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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.