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Finding the Third Proportional to 423,580 and 931,400

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Solution

The third proportional to 423,580 and 931,400 is: 2,048,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,580 : 931,400 = 931,400 : x
  2. Step 2: Convert to fraction form
    423,580/931,400 = 931,400/x
  3. Step 3: Cross multiply
    423,580x = 931,400 × 931,400
  4. Step 4: Simplify right side
    423,580x = 867,505,960,000
  5. Step 5: Solve for x
    x = 867,505,960,000/423,580
  6. Step 6: Final answer
    x = 2,048,033.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.