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Finding the Fourth Proportional to 505,105.65, 756,825.87 and 453,019.41

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Solution

The fourth proportional to 505,105.65, 756,825.87 and 453,019.41 is: 678,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,105.65 : 756,825.87 = 453,019.41 : x
  2. Step 2: Convert to fraction form
    505,105.65/756,825.87 = 453,019.41/x
  3. Step 3: Cross multiply
    505,105.65x = 756,825.87 × 453,019.41
  4. Step 4: Simplify right side
    505,105.65x = 342,856,805,316.01
  5. Step 5: Solve for x
    x = 342,856,805,316.01/505,105.65
  6. Step 6: Final answer
    x = 678,782.37

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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.