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Finding the Fourth Proportional to 395,346.41, 545,578.29 and 214,058.46

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Solution

The fourth proportional to 395,346.41, 545,578.29 and 214,058.46 is: 295,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,346.41 : 545,578.29 = 214,058.46 : x
  2. Step 2: Convert to fraction form
    395,346.41/545,578.29 = 214,058.46/x
  3. Step 3: Cross multiply
    395,346.41x = 545,578.29 × 214,058.46
  4. Step 4: Simplify right side
    395,346.41x = 116,785,650,612.75
  5. Step 5: Solve for x
    x = 116,785,650,612.75/395,346.41
  6. Step 6: Final answer
    x = 295,400.81

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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.