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Finding the Fourth Proportional to 476,073.40, 656,993.37 and 261,213.41

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Solution

The fourth proportional to 476,073.40, 656,993.37 and 261,213.41 is: 360,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,073.40 : 656,993.37 = 261,213.41 : x
  2. Step 2: Convert to fraction form
    476,073.40/656,993.37 = 261,213.41/x
  3. Step 3: Cross multiply
    476,073.40x = 656,993.37 × 261,213.41
  4. Step 4: Simplify right side
    476,073.40x = 171,615,477,451.54
  5. Step 5: Solve for x
    x = 171,615,477,451.54/476,073.40
  6. Step 6: Final answer
    x = 360,481.13

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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.