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Finding the Fourth Proportional to 3,948,823.57, 5,923,235.45 and 957,007.57

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Solution

The fourth proportional to 3,948,823.57, 5,923,235.45 and 957,007.57 is: 1,435,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,823.57 : 5,923,235.45 = 957,007.57 : x
  2. Step 2: Convert to fraction form
    3,948,823.57/5,923,235.45 = 957,007.57/x
  3. Step 3: Cross multiply
    3,948,823.57x = 5,923,235.45 × 957,007.57
  4. Step 4: Simplify right side
    3,948,823.57x = 5,668,581,164,542.36
  5. Step 5: Solve for x
    x = 5,668,581,164,542.36/3,948,823.57
  6. Step 6: Final answer
    x = 1,435,511.38

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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.