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Finding the Fourth Proportional to 326,723.80, 456,480.20 and 326,723.80

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Solution

The fourth proportional to 326,723.80, 456,480.20 and 326,723.80 is: 456,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,723.80 : 456,480.20 = 326,723.80 : x
  2. Step 2: Convert to fraction form
    326,723.80/456,480.20 = 326,723.80/x
  3. Step 3: Cross multiply
    326,723.80x = 456,480.20 × 326,723.80
  4. Step 4: Simplify right side
    326,723.80x = 149,142,945,568.76
  5. Step 5: Solve for x
    x = 149,142,945,568.76/326,723.80
  6. Step 6: Final answer
    x = 456,480.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.