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Finding the Fourth Proportional to 412,511.55, 618,767.33 and 362,647.95

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Solution

The fourth proportional to 412,511.55, 618,767.33 and 362,647.95 is: 543,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,511.55 : 618,767.33 = 362,647.95 : x
  2. Step 2: Convert to fraction form
    412,511.55/618,767.33 = 362,647.95/x
  3. Step 3: Cross multiply
    412,511.55x = 618,767.33 × 362,647.95
  4. Step 4: Simplify right side
    412,511.55x = 224,394,701,938.23
  5. Step 5: Solve for x
    x = 224,394,701,938.23/412,511.55
  6. Step 6: Final answer
    x = 543,971.93

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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.