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Finding the Fourth Proportional to 373,682.75, 515,682.20 and 222,779.75

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Solution

The fourth proportional to 373,682.75, 515,682.20 and 222,779.75 is: 307,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,682.75 : 515,682.20 = 222,779.75 : x
  2. Step 2: Convert to fraction form
    373,682.75/515,682.20 = 222,779.75/x
  3. Step 3: Cross multiply
    373,682.75x = 515,682.20 × 222,779.75
  4. Step 4: Simplify right side
    373,682.75x = 114,883,551,595.45
  5. Step 5: Solve for x
    x = 114,883,551,595.45/373,682.75
  6. Step 6: Final answer
    x = 307,436.06

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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.