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Finding the Fourth Proportional to 297,990.94, 446,423.13 and 230,638.21

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Solution

The fourth proportional to 297,990.94, 446,423.13 and 230,638.21 is: 345,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,990.94 : 446,423.13 = 230,638.21 : x
  2. Step 2: Convert to fraction form
    297,990.94/446,423.13 = 230,638.21/x
  3. Step 3: Cross multiply
    297,990.94x = 446,423.13 × 230,638.21
  4. Step 4: Simplify right side
    297,990.94x = 102,962,231,605.80
  5. Step 5: Solve for x
    x = 102,962,231,605.80/297,990.94
  6. Step 6: Final answer
    x = 345,521.35

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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.