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Finding the Fourth Proportional to 313,903.80, 433,186.30 and 170,662.84

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Solution

The fourth proportional to 313,903.80, 433,186.30 and 170,662.84 is: 235,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,903.80 : 433,186.30 = 170,662.84 : x
  2. Step 2: Convert to fraction form
    313,903.80/433,186.30 = 170,662.84/x
  3. Step 3: Cross multiply
    313,903.80x = 433,186.30 × 170,662.84
  4. Step 4: Simplify right side
    313,903.80x = 73,928,804,207.09
  5. Step 5: Solve for x
    x = 73,928,804,207.09/313,903.80
  6. Step 6: Final answer
    x = 235,514.21

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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.