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Finding the Third Proportional to 229,830 and 356,700

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Solution

The third proportional to 229,830 and 356,700 is: 553,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,830 : 356,700 = 356,700 : x
  2. Step 2: Convert to fraction form
    229,830/356,700 = 356,700/x
  3. Step 3: Cross multiply
    229,830x = 356,700 × 356,700
  4. Step 4: Simplify right side
    229,830x = 127,234,890,000
  5. Step 5: Solve for x
    x = 127,234,890,000/229,830
  6. Step 6: Final answer
    x = 553,604.36

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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.