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Finding the Fourth Proportional to 330,343.34, 455,866.16 and 192,513.48

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Solution

The fourth proportional to 330,343.34, 455,866.16 and 192,513.48 is: 265,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,343.34 : 455,866.16 = 192,513.48 : x
  2. Step 2: Convert to fraction form
    330,343.34/455,866.16 = 192,513.48/x
  3. Step 3: Cross multiply
    330,343.34x = 455,866.16 × 192,513.48
  4. Step 4: Simplify right side
    330,343.34x = 87,760,383,945.20
  5. Step 5: Solve for x
    x = 87,760,383,945.20/330,343.34
  6. Step 6: Final answer
    x = 265,664.16

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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.