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Finding the Fourth Proportional to 328,805.56, 453,703.04 and 199,676.88

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Solution

The fourth proportional to 328,805.56, 453,703.04 and 199,676.88 is: 275,524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,805.56 : 453,703.04 = 199,676.88 : x
  2. Step 2: Convert to fraction form
    328,805.56/453,703.04 = 199,676.88/x
  3. Step 3: Cross multiply
    328,805.56x = 453,703.04 × 199,676.88
  4. Step 4: Simplify right side
    328,805.56x = 90,594,007,473.72
  5. Step 5: Solve for x
    x = 90,594,007,473.72/328,805.56
  6. Step 6: Final answer
    x = 275,524.56

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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.