Home / 613,942.20-921,014.10-193,116.60

Finding the Fourth Proportional to 613,942.20, 921,014.10 and 193,116.60

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Solution

The fourth proportional to 613,942.20, 921,014.10 and 193,116.60 is: 289,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,942.20 : 921,014.10 = 193,116.60 : x
  2. Step 2: Convert to fraction form
    613,942.20/921,014.10 = 193,116.60/x
  3. Step 3: Cross multiply
    613,942.20x = 921,014.10 × 193,116.60
  4. Step 4: Simplify right side
    613,942.20x = 177,863,111,544.06
  5. Step 5: Solve for x
    x = 177,863,111,544.06/613,942.20
  6. Step 6: Final answer
    x = 289,706.61

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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.