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Finding the Fourth Proportional to 288,100.17, 397,600.74 and 160,794.90

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Solution

The fourth proportional to 288,100.17, 397,600.74 and 160,794.90 is: 221,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,100.17 : 397,600.74 = 160,794.90 : x
  2. Step 2: Convert to fraction form
    288,100.17/397,600.74 = 160,794.90/x
  3. Step 3: Cross multiply
    288,100.17x = 397,600.74 × 160,794.90
  4. Step 4: Simplify right side
    288,100.17x = 63,932,171,228.23
  5. Step 5: Solve for x
    x = 63,932,171,228.23/288,100.17
  6. Step 6: Final answer
    x = 221,909.52

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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.