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Finding the Fourth Proportional to 981,198, 1,354,165.52 and 545,658.77

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Solution

The fourth proportional to 981,198, 1,354,165.52 and 545,658.77 is: 753,071.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,198 : 1,354,165.52 = 545,658.77 : x
  2. Step 2: Convert to fraction form
    981,198/1,354,165.52 = 545,658.77/x
  3. Step 3: Cross multiply
    981,198x = 1,354,165.52 × 545,658.77
  4. Step 4: Simplify right side
    981,198x = 738,912,292,676.73
  5. Step 5: Solve for x
    x = 738,912,292,676.73/981,198
  6. Step 6: Final answer
    x = 753,071.54

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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.