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Finding the Fourth Proportional to 383,628.65, 529,406.43 and 222,577.97

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Solution

The fourth proportional to 383,628.65, 529,406.43 and 222,577.97 is: 307,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,628.65 : 529,406.43 = 222,577.97 : x
  2. Step 2: Convert to fraction form
    383,628.65/529,406.43 = 222,577.97/x
  3. Step 3: Cross multiply
    383,628.65x = 529,406.43 × 222,577.97
  4. Step 4: Simplify right side
    383,628.65x = 117,834,205,847.32
  5. Step 5: Solve for x
    x = 117,834,205,847.32/383,628.65
  6. Step 6: Final answer
    x = 307,156.95

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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.