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Finding the Fourth Proportional to 328,906.10, 493,553.55 and 216,910.10

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Solution

The fourth proportional to 328,906.10, 493,553.55 and 216,910.10 is: 325,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,906.10 : 493,553.55 = 216,910.10 : x
  2. Step 2: Convert to fraction form
    328,906.10/493,553.55 = 216,910.10/x
  3. Step 3: Cross multiply
    328,906.10x = 493,553.55 × 216,910.10
  4. Step 4: Simplify right side
    328,906.10x = 107,056,749,885.86
  5. Step 5: Solve for x
    x = 107,056,749,885.86/328,906.10
  6. Step 6: Final answer
    x = 325,493.35

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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.