Home / 406,619.75-561,136.57-225,334.67

Finding the Fourth Proportional to 406,619.75, 561,136.57 and 225,334.67

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Solution

The fourth proportional to 406,619.75, 561,136.57 and 225,334.67 is: 310,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,619.75 : 561,136.57 = 225,334.67 : x
  2. Step 2: Convert to fraction form
    406,619.75/561,136.57 = 225,334.67/x
  3. Step 3: Cross multiply
    406,619.75x = 561,136.57 × 225,334.67
  4. Step 4: Simplify right side
    406,619.75x = 126,443,520,456.86
  5. Step 5: Solve for x
    x = 126,443,520,456.86/406,619.75
  6. Step 6: Final answer
    x = 310,962.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.