Home / 410,867.35-616,328.87-126,540.34

Finding the Fourth Proportional to 410,867.35, 616,328.87 and 126,540.34

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Solution

The fourth proportional to 410,867.35, 616,328.87 and 126,540.34 is: 189,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,867.35 : 616,328.87 = 126,540.34 : x
  2. Step 2: Convert to fraction form
    410,867.35/616,328.87 = 126,540.34/x
  3. Step 3: Cross multiply
    410,867.35x = 616,328.87 × 126,540.34
  4. Step 4: Simplify right side
    410,867.35x = 77,990,462,588.09
  5. Step 5: Solve for x
    x = 77,990,462,588.09/410,867.35
  6. Step 6: Final answer
    x = 189,819.08

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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.