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Finding the Fourth Proportional to 339,378.64, 468,237.16 and 196,086.40

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Solution

The fourth proportional to 339,378.64, 468,237.16 and 196,086.40 is: 270,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,378.64 : 468,237.16 = 196,086.40 : x
  2. Step 2: Convert to fraction form
    339,378.64/468,237.16 = 196,086.40/x
  3. Step 3: Cross multiply
    339,378.64x = 468,237.16 × 196,086.40
  4. Step 4: Simplify right side
    339,378.64x = 91,814,939,050.62
  5. Step 5: Solve for x
    x = 91,814,939,050.62/339,378.64
  6. Step 6: Final answer
    x = 270,538.36

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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.