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Finding the Fourth Proportional to 489,997.52, 734,996.30 and 157,573.52

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Solution

The fourth proportional to 489,997.52, 734,996.30 and 157,573.52 is: 236,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,997.52 : 734,996.30 = 157,573.52 : x
  2. Step 2: Convert to fraction form
    489,997.52/734,996.30 = 157,573.52/x
  3. Step 3: Cross multiply
    489,997.52x = 734,996.30 × 157,573.52
  4. Step 4: Simplify right side
    489,997.52x = 115,815,954,177.98
  5. Step 5: Solve for x
    x = 115,815,954,177.98/489,997.52
  6. Step 6: Final answer
    x = 236,360.29

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.