Home / 613,942.47-920,868.72-193,338.63

Finding the Fourth Proportional to 613,942.47, 920,868.72 and 193,338.63

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Solution

The fourth proportional to 613,942.47, 920,868.72 and 193,338.63 is: 289,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,942.47 : 920,868.72 = 193,338.63 : x
  2. Step 2: Convert to fraction form
    613,942.47/920,868.72 = 193,338.63/x
  3. Step 3: Cross multiply
    613,942.47x = 920,868.72 × 193,338.63
  4. Step 4: Simplify right side
    613,942.47x = 178,039,496,734.65
  5. Step 5: Solve for x
    x = 178,039,496,734.65/613,942.47
  6. Step 6: Final answer
    x = 289,993.78

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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.