Home / 373,515.10-515,450.23-203,749.22

Finding the Fourth Proportional to 373,515.10, 515,450.23 and 203,749.22

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Solution

The fourth proportional to 373,515.10, 515,450.23 and 203,749.22 is: 281,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,515.10 : 515,450.23 = 203,749.22 : x
  2. Step 2: Convert to fraction form
    373,515.10/515,450.23 = 203,749.22/x
  3. Step 3: Cross multiply
    373,515.10x = 515,450.23 × 203,749.22
  4. Step 4: Simplify right side
    373,515.10x = 105,022,584,236.66
  5. Step 5: Solve for x
    x = 105,022,584,236.66/373,515.10
  6. Step 6: Final answer
    x = 281,173.60

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1.5x scale

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.