Home / 440,186.60-658,530.30-381,672.20

Finding the Fourth Proportional to 440,186.60, 658,530.30 and 381,672.20

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Solution

The fourth proportional to 440,186.60, 658,530.30 and 381,672.20 is: 570,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,186.60 : 658,530.30 = 381,672.20 : x
  2. Step 2: Convert to fraction form
    440,186.60/658,530.30 = 381,672.20/x
  3. Step 3: Cross multiply
    440,186.60x = 658,530.30 × 381,672.20
  4. Step 4: Simplify right side
    440,186.60x = 251,342,708,367.66
  5. Step 5: Solve for x
    x = 251,342,708,367.66/440,186.60
  6. Step 6: Final answer
    x = 570,991.28

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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.