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Finding the Fourth Proportional to 328,993.96, 453,994.50 and 193,009

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Solution

The fourth proportional to 328,993.96, 453,994.50 and 193,009 is: 266,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,993.96 : 453,994.50 = 193,009 : x
  2. Step 2: Convert to fraction form
    328,993.96/453,994.50 = 193,009/x
  3. Step 3: Cross multiply
    328,993.96x = 453,994.50 × 193,009
  4. Step 4: Simplify right side
    328,993.96x = 87,625,024,450.50
  5. Step 5: Solve for x
    x = 87,625,024,450.50/328,993.96
  6. Step 6: Final answer
    x = 266,342.35

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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.