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Finding the Fourth Proportional to 437,794.20, 655,233.30 and 317,509.20

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Solution

The fourth proportional to 437,794.20, 655,233.30 and 317,509.20 is: 475,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,794.20 : 655,233.30 = 317,509.20 : x
  2. Step 2: Convert to fraction form
    437,794.20/655,233.30 = 317,509.20/x
  3. Step 3: Cross multiply
    437,794.20x = 655,233.30 × 317,509.20
  4. Step 4: Simplify right side
    437,794.20x = 208,042,600,896.36
  5. Step 5: Solve for x
    x = 208,042,600,896.36/437,794.20
  6. Step 6: Final answer
    x = 475,206.39

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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.