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Finding the Third Proportional to 238,394 and 360,020

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Solution

The third proportional to 238,394 and 360,020 is: 543,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,394 : 360,020 = 360,020 : x
  2. Step 2: Convert to fraction form
    238,394/360,020 = 360,020/x
  3. Step 3: Cross multiply
    238,394x = 360,020 × 360,020
  4. Step 4: Simplify right side
    238,394x = 129,614,400,400
  5. Step 5: Solve for x
    x = 129,614,400,400/238,394
  6. Step 6: Final answer
    x = 543,698.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.