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Finding the Fourth Proportional to 551,440.80, 826,286.40 and 364,233.60

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Solution

The fourth proportional to 551,440.80, 826,286.40 and 364,233.60 is: 545,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,440.80 : 826,286.40 = 364,233.60 : x
  2. Step 2: Convert to fraction form
    551,440.80/826,286.40 = 364,233.60/x
  3. Step 3: Cross multiply
    551,440.80x = 826,286.40 × 364,233.60
  4. Step 4: Simplify right side
    551,440.80x = 300,961,270,103.04
  5. Step 5: Solve for x
    x = 300,961,270,103.04/551,440.80
  6. Step 6: Final answer
    x = 545,772.58

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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.