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Finding the Fourth Proportional to 395,362.43, 545,600.48 and 214,074.46

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Solution

The fourth proportional to 395,362.43, 545,600.48 and 214,074.46 is: 295,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,362.43 : 545,600.48 = 214,074.46 : x
  2. Step 2: Convert to fraction form
    395,362.43/545,600.48 = 214,074.46/x
  3. Step 3: Cross multiply
    395,362.43x = 545,600.48 × 214,074.46
  4. Step 4: Simplify right side
    395,362.43x = 116,799,128,131.74
  5. Step 5: Solve for x
    x = 116,799,128,131.74/395,362.43
  6. Step 6: Final answer
    x = 295,422.93

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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.