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Finding the Fourth Proportional to 412,220.88, 618,623.42 and 187,610.22

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Solution

The fourth proportional to 412,220.88, 618,623.42 and 187,610.22 is: 281,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,220.88 : 618,623.42 = 187,610.22 : x
  2. Step 2: Convert to fraction form
    412,220.88/618,623.42 = 187,610.22/x
  3. Step 3: Cross multiply
    412,220.88x = 618,623.42 × 187,610.22
  4. Step 4: Simplify right side
    412,220.88x = 116,060,074,985.30
  5. Step 5: Solve for x
    x = 116,060,074,985.30/412,220.88
  6. Step 6: Final answer
    x = 281,548.27

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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.