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Finding the Third Proportional to 392,272.88 and 606,148.31

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Solution

The third proportional to 392,272.88 and 606,148.31 is: 936,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,272.88 : 606,148.31 = 606,148.31 : x
  2. Step 2: Convert to fraction form
    392,272.88/606,148.31 = 606,148.31/x
  3. Step 3: Cross multiply
    392,272.88x = 606,148.31 × 606,148.31
  4. Step 4: Simplify right side
    392,272.88x = 367,415,776,746.60
  5. Step 5: Solve for x
    x = 367,415,776,746.60/392,272.88
  6. Step 6: Final answer
    x = 936,633.15

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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.