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Finding the Fourth Proportional to 326,471.67, 450,621.50 and 190,534.23

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Solution

The fourth proportional to 326,471.67, 450,621.50 and 190,534.23 is: 262,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,471.67 : 450,621.50 = 190,534.23 : x
  2. Step 2: Convert to fraction form
    326,471.67/450,621.50 = 190,534.23/x
  3. Step 3: Cross multiply
    326,471.67x = 450,621.50 × 190,534.23
  4. Step 4: Simplify right side
    326,471.67x = 85,858,819,571.27
  5. Step 5: Solve for x
    x = 85,858,819,571.27/326,471.67
  6. Step 6: Final answer
    x = 262,990.11

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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.