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Finding the Fourth Proportional to 395,472.88, 545,748.18 and 214,180.24

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Solution

The fourth proportional to 395,472.88, 545,748.18 and 214,180.24 is: 295,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,472.88 : 545,748.18 = 214,180.24 : x
  2. Step 2: Convert to fraction form
    395,472.88/545,748.18 = 214,180.24/x
  3. Step 3: Cross multiply
    395,472.88x = 545,748.18 × 214,180.24
  4. Step 4: Simplify right side
    395,472.88x = 116,888,476,171.96
  5. Step 5: Solve for x
    x = 116,888,476,171.96/395,472.88
  6. Step 6: Final answer
    x = 295,566.35

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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.