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Finding the Fourth Proportional to 330,344.34, 455,867.54 and 192,514.48

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Solution

The fourth proportional to 330,344.34, 455,867.54 and 192,514.48 is: 265,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,344.34 : 455,867.54 = 192,514.48 : x
  2. Step 2: Convert to fraction form
    330,344.34/455,867.54 = 192,514.48/x
  3. Step 3: Cross multiply
    330,344.34x = 455,867.54 × 192,514.48
  4. Step 4: Simplify right side
    330,344.34x = 87,761,102,411.98
  5. Step 5: Solve for x
    x = 87,761,102,411.98/330,344.34
  6. Step 6: Final answer
    x = 265,665.52

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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.