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Finding the Fourth Proportional to 313,849.62, 433,121.45 and 191,349.07

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Solution

The fourth proportional to 313,849.62, 433,121.45 and 191,349.07 is: 264,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,849.62 : 433,121.45 = 191,349.07 : x
  2. Step 2: Convert to fraction form
    313,849.62/433,121.45 = 191,349.07/x
  3. Step 3: Cross multiply
    313,849.62x = 433,121.45 × 191,349.07
  4. Step 4: Simplify right side
    313,849.62x = 82,877,384,615.00
  5. Step 5: Solve for x
    x = 82,877,384,615.00/313,849.62
  6. Step 6: Final answer
    x = 264,067.18

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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.