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Finding the Fourth Proportional to 395,672.64, 546,028.92 and 214,384.56

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Solution

The fourth proportional to 395,672.64, 546,028.92 and 214,384.56 is: 295,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,672.64 : 546,028.92 = 214,384.56 : x
  2. Step 2: Convert to fraction form
    395,672.64/546,028.92 = 214,384.56/x
  3. Step 3: Cross multiply
    395,672.64x = 546,028.92 × 214,384.56
  4. Step 4: Simplify right side
    395,672.64x = 117,060,169,761.48
  5. Step 5: Solve for x
    x = 117,060,169,761.48/395,672.64
  6. Step 6: Final answer
    x = 295,851.06

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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.