Home / 379,118.18-568,487.06-126,309.74

Finding the Fourth Proportional to 379,118.18, 568,487.06 and 126,309.74

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Solution

The fourth proportional to 379,118.18, 568,487.06 and 126,309.74 is: 189,401.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,118.18 : 568,487.06 = 126,309.74 : x
  2. Step 2: Convert to fraction form
    379,118.18/568,487.06 = 126,309.74/x
  3. Step 3: Cross multiply
    379,118.18x = 568,487.06 × 126,309.74
  4. Step 4: Simplify right side
    379,118.18x = 71,805,452,741.96
  5. Step 5: Solve for x
    x = 71,805,452,741.96/379,118.18
  6. Step 6: Final answer
    x = 189,401.24

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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.