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Finding the Fourth Proportional to 395,553.01, 545,865.77 and 214,264.94

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Solution

The fourth proportional to 395,553.01, 545,865.77 and 214,264.94 is: 295,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,553.01 : 545,865.77 = 214,264.94 : x
  2. Step 2: Convert to fraction form
    395,553.01/545,865.77 = 214,264.94/x
  3. Step 3: Cross multiply
    395,553.01x = 545,865.77 × 214,264.94
  4. Step 4: Simplify right side
    395,553.01x = 116,959,893,727.78
  5. Step 5: Solve for x
    x = 116,959,893,727.78/395,553.01
  6. Step 6: Final answer
    x = 295,687.03

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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.