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Finding the Fourth Proportional to 316,993.55, 437,495.94 and 196,173.74

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Solution

The fourth proportional to 316,993.55, 437,495.94 and 196,173.74 is: 270,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,993.55 : 437,495.94 = 196,173.74 : x
  2. Step 2: Convert to fraction form
    316,993.55/437,495.94 = 196,173.74/x
  3. Step 3: Cross multiply
    316,993.55x = 437,495.94 × 196,173.74
  4. Step 4: Simplify right side
    316,993.55x = 85,825,212,597.14
  5. Step 5: Solve for x
    x = 85,825,212,597.14/316,993.55
  6. Step 6: Final answer
    x = 270,747.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.