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Finding the Fourth Proportional to 313,694.25, 432,900.80 and 170,454.29

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Solution

The fourth proportional to 313,694.25, 432,900.80 and 170,454.29 is: 235,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,694.25 : 432,900.80 = 170,454.29 : x
  2. Step 2: Convert to fraction form
    313,694.25/432,900.80 = 170,454.29/x
  3. Step 3: Cross multiply
    313,694.25x = 432,900.80 × 170,454.29
  4. Step 4: Simplify right side
    313,694.25x = 73,789,798,504.43
  5. Step 5: Solve for x
    x = 73,789,798,504.43/313,694.25
  6. Step 6: Final answer
    x = 235,228.41

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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.