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Finding the Fourth Proportional to 288,975.60, 398,770.29 and 161,626.59

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Solution

The fourth proportional to 288,975.60, 398,770.29 and 161,626.59 is: 223,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,975.60 : 398,770.29 = 161,626.59 : x
  2. Step 2: Convert to fraction form
    288,975.60/398,770.29 = 161,626.59/x
  3. Step 3: Cross multiply
    288,975.60x = 398,770.29 × 161,626.59
  4. Step 4: Simplify right side
    288,975.60x = 64,451,882,166.01
  5. Step 5: Solve for x
    x = 64,451,882,166.01/288,975.60
  6. Step 6: Final answer
    x = 223,035.72

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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.