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Finding the Fourth Proportional to 399,690.23, 599,950.61 and 267,494.27

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Solution

The fourth proportional to 399,690.23, 599,950.61 and 267,494.27 is: 401,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,690.23 : 599,950.61 = 267,494.27 : x
  2. Step 2: Convert to fraction form
    399,690.23/599,950.61 = 267,494.27/x
  3. Step 3: Cross multiply
    399,690.23x = 599,950.61 × 267,494.27
  4. Step 4: Simplify right side
    399,690.23x = 160,483,349,120.53
  5. Step 5: Solve for x
    x = 160,483,349,120.53/399,690.23
  6. Step 6: Final answer
    x = 401,519.32

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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.