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Finding the Fourth Proportional to 288,220.44, 397,629.90 and 192,575.64

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Solution

The fourth proportional to 288,220.44, 397,629.90 and 192,575.64 is: 265,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,220.44 : 397,629.90 = 192,575.64 : x
  2. Step 2: Convert to fraction form
    288,220.44/397,629.90 = 192,575.64/x
  3. Step 3: Cross multiply
    288,220.44x = 397,629.90 × 192,575.64
  4. Step 4: Simplify right side
    288,220.44x = 76,573,832,475.64
  5. Step 5: Solve for x
    x = 76,573,832,475.64/288,220.44
  6. Step 6: Final answer
    x = 265,678.01

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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.