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Finding the Fourth Proportional to 543,616.07, 815,064.19 and 259,350.49

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Solution

The fourth proportional to 543,616.07, 815,064.19 and 259,350.49 is: 388,854.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,616.07 : 815,064.19 = 259,350.49 : x
  2. Step 2: Convert to fraction form
    543,616.07/815,064.19 = 259,350.49/x
  3. Step 3: Cross multiply
    543,616.07x = 815,064.19 × 259,350.49
  4. Step 4: Simplify right side
    543,616.07x = 211,387,297,057.95
  5. Step 5: Solve for x
    x = 211,387,297,057.95/543,616.07
  6. Step 6: Final answer
    x = 388,854.03

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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.