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Finding the Fourth Proportional to 543,377.93, 815,440.59 and 188,391.94

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Solution

The fourth proportional to 543,377.93, 815,440.59 and 188,391.94 is: 282,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,377.93 : 815,440.59 = 188,391.94 : x
  2. Step 2: Convert to fraction form
    543,377.93/815,440.59 = 188,391.94/x
  3. Step 3: Cross multiply
    543,377.93x = 815,440.59 × 188,391.94
  4. Step 4: Simplify right side
    543,377.93x = 153,622,434,704.85
  5. Step 5: Solve for x
    x = 153,622,434,704.85/543,377.93
  6. Step 6: Final answer
    x = 282,717.47

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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.