Home / 412,628.98-618,945.60-187,832.20

Finding the Fourth Proportional to 412,628.98, 618,945.60 and 187,832.20

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Solution

The fourth proportional to 412,628.98, 618,945.60 and 187,832.20 is: 281,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,628.98 : 618,945.60 = 187,832.20 : x
  2. Step 2: Convert to fraction form
    412,628.98/618,945.60 = 187,832.20/x
  3. Step 3: Cross multiply
    412,628.98x = 618,945.60 × 187,832.20
  4. Step 4: Simplify right side
    412,628.98x = 116,257,916,657.03
  5. Step 5: Solve for x
    x = 116,257,916,657.03/412,628.98
  6. Step 6: Final answer
    x = 281,749.28

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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.