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Finding the Fourth Proportional to 397,593.79, 549,010.53 and 368,745.44

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Solution

The fourth proportional to 397,593.79, 549,010.53 and 368,745.44 is: 509,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,593.79 : 549,010.53 = 368,745.44 : x
  2. Step 2: Convert to fraction form
    397,593.79/549,010.53 = 368,745.44/x
  3. Step 3: Cross multiply
    397,593.79x = 549,010.53 × 368,745.44
  4. Step 4: Simplify right side
    397,593.79x = 202,445,126,704.43
  5. Step 5: Solve for x
    x = 202,445,126,704.43/397,593.79
  6. Step 6: Final answer
    x = 509,175.78

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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.