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Finding the Fourth Proportional to 505,268.21, 758,298.22 and 352,471.43

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Solution

The fourth proportional to 505,268.21, 758,298.22 and 352,471.43 is: 528,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,268.21 : 758,298.22 = 352,471.43 : x
  2. Step 2: Convert to fraction form
    505,268.21/758,298.22 = 352,471.43/x
  3. Step 3: Cross multiply
    505,268.21x = 758,298.22 × 352,471.43
  4. Step 4: Simplify right side
    505,268.21x = 267,278,458,984.42
  5. Step 5: Solve for x
    x = 267,278,458,984.42/505,268.21
  6. Step 6: Final answer
    x = 528,983.32

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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.