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Finding the Fourth Proportional to 396,604.92, 594,683.81 and 130,293.93

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Solution

The fourth proportional to 396,604.92, 594,683.81 and 130,293.93 is: 195,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,604.92 : 594,683.81 = 130,293.93 : x
  2. Step 2: Convert to fraction form
    396,604.92/594,683.81 = 130,293.93/x
  3. Step 3: Cross multiply
    396,604.92x = 594,683.81 × 130,293.93
  4. Step 4: Simplify right side
    396,604.92x = 77,483,688,064.59
  5. Step 5: Solve for x
    x = 77,483,688,064.59/396,604.92
  6. Step 6: Final answer
    x = 195,367.44

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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.