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Finding the Fourth Proportional to 383,203.94, 528,821.58 and 222,152.34

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Solution

The fourth proportional to 383,203.94, 528,821.58 and 222,152.34 is: 306,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,203.94 : 528,821.58 = 222,152.34 : x
  2. Step 2: Convert to fraction form
    383,203.94/528,821.58 = 222,152.34/x
  3. Step 3: Cross multiply
    383,203.94x = 528,821.58 × 222,152.34
  4. Step 4: Simplify right side
    383,203.94x = 117,478,951,650.79
  5. Step 5: Solve for x
    x = 117,478,951,650.79/383,203.94
  6. Step 6: Final answer
    x = 306,570.32

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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.