Home / 442,943.57-611,049.53-289,914.39

Finding the Fourth Proportional to 442,943.57, 611,049.53 and 289,914.39

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Solution

The fourth proportional to 442,943.57, 611,049.53 and 289,914.39 is: 399,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,943.57 : 611,049.53 = 289,914.39 : x
  2. Step 2: Convert to fraction form
    442,943.57/611,049.53 = 289,914.39/x
  3. Step 3: Cross multiply
    442,943.57x = 611,049.53 × 289,914.39
  4. Step 4: Simplify right side
    442,943.57x = 177,152,052,474.52
  5. Step 5: Solve for x
    x = 177,152,052,474.52/442,943.57
  6. Step 6: Final answer
    x = 399,942.71

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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.