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Finding the Fourth Proportional to 463,382.40, 695,138.40 and 197,140.80

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Solution

The fourth proportional to 463,382.40, 695,138.40 and 197,140.80 is: 295,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,382.40 : 695,138.40 = 197,140.80 : x
  2. Step 2: Convert to fraction form
    463,382.40/695,138.40 = 197,140.80/x
  3. Step 3: Cross multiply
    463,382.40x = 695,138.40 × 197,140.80
  4. Step 4: Simplify right side
    463,382.40x = 137,040,140,286.72
  5. Step 5: Solve for x
    x = 137,040,140,286.72/463,382.40
  6. Step 6: Final answer
    x = 295,738.77

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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.