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Finding the Third Proportional to 221,402 and 350,028

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Solution

The third proportional to 221,402 and 350,028 is: 553,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,402 : 350,028 = 350,028 : x
  2. Step 2: Convert to fraction form
    221,402/350,028 = 350,028/x
  3. Step 3: Cross multiply
    221,402x = 350,028 × 350,028
  4. Step 4: Simplify right side
    221,402x = 122,519,600,784
  5. Step 5: Solve for x
    x = 122,519,600,784/221,402
  6. Step 6: Final answer
    x = 553,380.73

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.