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Finding the Fourth Proportional to 344,638.60, 516,958.09 and 107,999.80

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Solution

The fourth proportional to 344,638.60, 516,958.09 and 107,999.80 is: 161,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,638.60 : 516,958.09 = 107,999.80 : x
  2. Step 2: Convert to fraction form
    344,638.60/516,958.09 = 107,999.80/x
  3. Step 3: Cross multiply
    344,638.60x = 516,958.09 × 107,999.80
  4. Step 4: Simplify right side
    344,638.60x = 55,831,370,058.38
  5. Step 5: Solve for x
    x = 55,831,370,058.38/344,638.60
  6. Step 6: Final answer
    x = 161,999.76

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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.