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Finding the Fourth Proportional to 383,200.56, 528,816.92 and 222,148.97

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Solution

The fourth proportional to 383,200.56, 528,816.92 and 222,148.97 is: 306,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,200.56 : 528,816.92 = 222,148.97 : x
  2. Step 2: Convert to fraction form
    383,200.56/528,816.92 = 222,148.97/x
  3. Step 3: Cross multiply
    383,200.56x = 528,816.92 × 222,148.97
  4. Step 4: Simplify right side
    383,200.56x = 117,476,134,096.57
  5. Step 5: Solve for x
    x = 117,476,134,096.57/383,200.56
  6. Step 6: Final answer
    x = 306,565.66

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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.