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Finding the Third Proportional to 223,990 and 346,818

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Solution

The third proportional to 223,990 and 346,818 is: 537,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,990 : 346,818 = 346,818 : x
  2. Step 2: Convert to fraction form
    223,990/346,818 = 346,818/x
  3. Step 3: Cross multiply
    223,990x = 346,818 × 346,818
  4. Step 4: Simplify right side
    223,990x = 120,282,725,124
  5. Step 5: Solve for x
    x = 120,282,725,124/223,990
  6. Step 6: Final answer
    x = 537,000.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.