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Finding the Fourth Proportional to 328,765.52, 453,529.26 and 199,669.65

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Solution

The fourth proportional to 328,765.52, 453,529.26 and 199,669.65 is: 275,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,765.52 : 453,529.26 = 199,669.65 : x
  2. Step 2: Convert to fraction form
    328,765.52/453,529.26 = 199,669.65/x
  3. Step 3: Cross multiply
    328,765.52x = 453,529.26 × 199,669.65
  4. Step 4: Simplify right side
    328,765.52x = 90,556,028,608.96
  5. Step 5: Solve for x
    x = 90,556,028,608.96/328,765.52
  6. Step 6: Final answer
    x = 275,442.60

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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.