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Finding the Fourth Proportional to 349,661.22, 525,491.38 and 325,967.90

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Solution

The fourth proportional to 349,661.22, 525,491.38 and 325,967.90 is: 489,883.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,661.22 : 525,491.38 = 325,967.90 : x
  2. Step 2: Convert to fraction form
    349,661.22/525,491.38 = 325,967.90/x
  3. Step 3: Cross multiply
    349,661.22x = 525,491.38 × 325,967.90
  4. Step 4: Simplify right side
    349,661.22x = 171,293,321,606.70
  5. Step 5: Solve for x
    x = 171,293,321,606.70/349,661.22
  6. Step 6: Final answer
    x = 489,883.67

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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.