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Finding the Fourth Proportional to 396,510.80, 594,708.60 and 115,998.80

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Solution

The fourth proportional to 396,510.80, 594,708.60 and 115,998.80 is: 173,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,510.80 : 594,708.60 = 115,998.80 : x
  2. Step 2: Convert to fraction form
    396,510.80/594,708.60 = 115,998.80/x
  3. Step 3: Cross multiply
    396,510.80x = 594,708.60 × 115,998.80
  4. Step 4: Simplify right side
    396,510.80x = 68,985,483,949.68
  5. Step 5: Solve for x
    x = 68,985,483,949.68/396,510.80
  6. Step 6: Final answer
    x = 173,981.35

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1.5x scale

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.