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Finding the Fourth Proportional to 316,768.26, 436,974.48 and 195,870.90

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Solution

The fourth proportional to 316,768.26, 436,974.48 and 195,870.90 is: 270,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,768.26 : 436,974.48 = 195,870.90 : x
  2. Step 2: Convert to fraction form
    316,768.26/436,974.48 = 195,870.90/x
  3. Step 3: Cross multiply
    316,768.26x = 436,974.48 × 195,870.90
  4. Step 4: Simplify right side
    316,768.26x = 85,590,584,674.63
  5. Step 5: Solve for x
    x = 85,590,584,674.63/316,768.26
  6. Step 6: Final answer
    x = 270,199.37

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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.