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Finding the Fourth Proportional to 618,182.28, 853,143.60 and 346,245.24

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Solution

The fourth proportional to 618,182.28, 853,143.60 and 346,245.24 is: 477,847.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,182.28 : 853,143.60 = 346,245.24 : x
  2. Step 2: Convert to fraction form
    618,182.28/853,143.60 = 346,245.24/x
  3. Step 3: Cross multiply
    618,182.28x = 853,143.60 × 346,245.24
  4. Step 4: Simplify right side
    618,182.28x = 295,396,910,536.46
  5. Step 5: Solve for x
    x = 295,396,910,536.46/618,182.28
  6. Step 6: Final answer
    x = 477,847.59

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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.