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Finding the Fourth Proportional to 324,064.90, 485,514.15 and 277,408.90

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Solution

The fourth proportional to 324,064.90, 485,514.15 and 277,408.90 is: 415,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,064.90 : 485,514.15 = 277,408.90 : x
  2. Step 2: Convert to fraction form
    324,064.90/485,514.15 = 277,408.90/x
  3. Step 3: Cross multiply
    324,064.90x = 485,514.15 × 277,408.90
  4. Step 4: Simplify right side
    324,064.90x = 134,685,946,285.94
  5. Step 5: Solve for x
    x = 134,685,946,285.94/324,064.90
  6. Step 6: Final answer
    x = 415,614.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.