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Finding the Fourth Proportional to 288,170.64, 397,627.92 and 160,846.20

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Solution

The fourth proportional to 288,170.64, 397,627.92 and 160,846.20 is: 221,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,170.64 : 397,627.92 = 160,846.20 : x
  2. Step 2: Convert to fraction form
    288,170.64/397,627.92 = 160,846.20/x
  3. Step 3: Cross multiply
    288,170.64x = 397,627.92 × 160,846.20
  4. Step 4: Simplify right side
    288,170.64x = 63,956,939,945.90
  5. Step 5: Solve for x
    x = 63,956,939,945.90/288,170.64
  6. Step 6: Final answer
    x = 221,941.21

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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.