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Finding the Fourth Proportional to 313,454.39, 432,568.62 and 170,214.39

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Solution

The fourth proportional to 313,454.39, 432,568.62 and 170,214.39 is: 234,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,454.39 : 432,568.62 = 170,214.39 : x
  2. Step 2: Convert to fraction form
    313,454.39/432,568.62 = 170,214.39/x
  3. Step 3: Cross multiply
    313,454.39x = 432,568.62 × 170,214.39
  4. Step 4: Simplify right side
    313,454.39x = 73,629,403,786.44
  5. Step 5: Solve for x
    x = 73,629,403,786.44/313,454.39
  6. Step 6: Final answer
    x = 234,896.71

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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.