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Finding the Fourth Proportional to 326,062.62, 449,493.98 and 228,970.76

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Solution

The fourth proportional to 326,062.62, 449,493.98 and 228,970.76 is: 315,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,062.62 : 449,493.98 = 228,970.76 : x
  2. Step 2: Convert to fraction form
    326,062.62/449,493.98 = 228,970.76/x
  3. Step 3: Cross multiply
    326,062.62x = 449,493.98 × 228,970.76
  4. Step 4: Simplify right side
    326,062.62x = 102,920,974,823.70
  5. Step 5: Solve for x
    x = 102,920,974,823.70/326,062.62
  6. Step 6: Final answer
    x = 315,647.88

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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.