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Finding the Fourth Proportional to 547,311.44, 754,874.15 and 470,958.49

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Solution

The fourth proportional to 547,311.44, 754,874.15 and 470,958.49 is: 649,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,311.44 : 754,874.15 = 470,958.49 : x
  2. Step 2: Convert to fraction form
    547,311.44/754,874.15 = 470,958.49/x
  3. Step 3: Cross multiply
    547,311.44x = 754,874.15 × 470,958.49
  4. Step 4: Simplify right side
    547,311.44x = 355,514,383,694.87
  5. Step 5: Solve for x
    x = 355,514,383,694.87/547,311.44
  6. Step 6: Final answer
    x = 649,565.05

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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.