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Finding the Fourth Proportional to 300,107.43, 413,743.04 and 192,490.63

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Solution

The fourth proportional to 300,107.43, 413,743.04 and 192,490.63 is: 265,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,107.43 : 413,743.04 = 192,490.63 : x
  2. Step 2: Convert to fraction form
    300,107.43/413,743.04 = 192,490.63/x
  3. Step 3: Cross multiply
    300,107.43x = 413,743.04 × 192,490.63
  4. Step 4: Simplify right side
    300,107.43x = 79,641,657,152.74
  5. Step 5: Solve for x
    x = 79,641,657,152.74/300,107.43
  6. Step 6: Final answer
    x = 265,377.16

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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.