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Finding the Fourth Proportional to 342,044.28, 472,021.74 and 191,141.28

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Solution

The fourth proportional to 342,044.28, 472,021.74 and 191,141.28 is: 263,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,044.28 : 472,021.74 = 191,141.28 : x
  2. Step 2: Convert to fraction form
    342,044.28/472,021.74 = 191,141.28/x
  3. Step 3: Cross multiply
    342,044.28x = 472,021.74 × 191,141.28
  4. Step 4: Simplify right side
    342,044.28x = 90,222,839,571.43
  5. Step 5: Solve for x
    x = 90,222,839,571.43/342,044.28
  6. Step 6: Final answer
    x = 263,775.32

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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.