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Finding the Fourth Proportional to 328,843.60, 491,840.51 and 193,585.34

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Solution

The fourth proportional to 328,843.60, 491,840.51 and 193,585.34 is: 289,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,843.60 : 491,840.51 = 193,585.34 : x
  2. Step 2: Convert to fraction form
    328,843.60/491,840.51 = 193,585.34/x
  3. Step 3: Cross multiply
    328,843.60x = 491,840.51 × 193,585.34
  4. Step 4: Simplify right side
    328,843.60x = 95,213,112,615.80
  5. Step 5: Solve for x
    x = 95,213,112,615.80/328,843.60
  6. Step 6: Final answer
    x = 289,539.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.