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Finding the Fourth Proportional to 439,796.64, 658,578.48 and 368,531.88

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Solution

The fourth proportional to 439,796.64, 658,578.48 and 368,531.88 is: 551,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,796.64 : 658,578.48 = 368,531.88 : x
  2. Step 2: Convert to fraction form
    439,796.64/658,578.48 = 368,531.88/x
  3. Step 3: Cross multiply
    439,796.64x = 658,578.48 × 368,531.88
  4. Step 4: Simplify right side
    439,796.64x = 242,707,165,361.94
  5. Step 5: Solve for x
    x = 242,707,165,361.94/439,796.64
  6. Step 6: Final answer
    x = 551,862.25

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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.