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Finding the Fourth Proportional to 618,119.46, 853,025.85 and 346,198.82

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Solution

The fourth proportional to 618,119.46, 853,025.85 and 346,198.82 is: 477,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,119.46 : 853,025.85 = 346,198.82 : x
  2. Step 2: Convert to fraction form
    618,119.46/853,025.85 = 346,198.82/x
  3. Step 3: Cross multiply
    618,119.46x = 853,025.85 × 346,198.82
  4. Step 4: Simplify right side
    618,119.46x = 295,316,538,434.37
  5. Step 5: Solve for x
    x = 295,316,538,434.37/618,119.46
  6. Step 6: Final answer
    x = 477,766.12

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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.