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Finding the Fourth Proportional to 326,722.20, 458,344.20 and 326,722.20

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Solution

The fourth proportional to 326,722.20, 458,344.20 and 326,722.20 is: 458,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,722.20 : 458,344.20 = 326,722.20 : x
  2. Step 2: Convert to fraction form
    326,722.20/458,344.20 = 326,722.20/x
  3. Step 3: Cross multiply
    326,722.20x = 458,344.20 × 326,722.20
  4. Step 4: Simplify right side
    326,722.20x = 149,751,225,381.24
  5. Step 5: Solve for x
    x = 149,751,225,381.24/326,722.20
  6. Step 6: Final answer
    x = 458,344.20

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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.