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Finding the Fourth Proportional to 663,928.05, 995,647.86 and 237,348.57

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Solution

The fourth proportional to 663,928.05, 995,647.86 and 237,348.57 is: 355,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,928.05 : 995,647.86 = 237,348.57 : x
  2. Step 2: Convert to fraction form
    663,928.05/995,647.86 = 237,348.57/x
  3. Step 3: Cross multiply
    663,928.05x = 995,647.86 × 237,348.57
  4. Step 4: Simplify right side
    663,928.05x = 236,315,595,794.56
  5. Step 5: Solve for x
    x = 236,315,595,794.56/663,928.05
  6. Step 6: Final answer
    x = 355,935.55

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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.