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Finding the Fourth Proportional to 383,573.45, 529,334.93 and 211,497.59

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Solution

The fourth proportional to 383,573.45, 529,334.93 and 211,497.59 is: 291,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,573.45 : 529,334.93 = 211,497.59 : x
  2. Step 2: Convert to fraction form
    383,573.45/529,334.93 = 211,497.59/x
  3. Step 3: Cross multiply
    383,573.45x = 529,334.93 × 211,497.59
  4. Step 4: Simplify right side
    383,573.45x = 111,953,061,997.82
  5. Step 5: Solve for x
    x = 111,953,061,997.82/383,573.45
  6. Step 6: Final answer
    x = 291,868.64

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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.