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Finding the Fourth Proportional to 342,004.20, 479,593.20 and 342,004.20

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Solution

The fourth proportional to 342,004.20, 479,593.20 and 342,004.20 is: 479,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,004.20 : 479,593.20 = 342,004.20 : x
  2. Step 2: Convert to fraction form
    342,004.20/479,593.20 = 342,004.20/x
  3. Step 3: Cross multiply
    342,004.20x = 479,593.20 × 342,004.20
  4. Step 4: Simplify right side
    342,004.20x = 164,022,888,691.44
  5. Step 5: Solve for x
    x = 164,022,888,691.44/342,004.20
  6. Step 6: Final answer
    x = 479,593.20

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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.