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Finding the Fourth Proportional to 446,993.75, 616,851.38 and 245,789.75

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Solution

The fourth proportional to 446,993.75, 616,851.38 and 245,789.75 is: 339,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,993.75 : 616,851.38 = 245,789.75 : x
  2. Step 2: Convert to fraction form
    446,993.75/616,851.38 = 245,789.75/x
  3. Step 3: Cross multiply
    446,993.75x = 616,851.38 × 245,789.75
  4. Step 4: Simplify right side
    446,993.75x = 151,615,746,477.36
  5. Step 5: Solve for x
    x = 151,615,746,477.36/446,993.75
  6. Step 6: Final answer
    x = 339,189.86

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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.