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Finding the Fourth Proportional to 395,557.95, 545,858.72 and 232,211.83

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Solution

The fourth proportional to 395,557.95, 545,858.72 and 232,211.83 is: 320,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,557.95 : 545,858.72 = 232,211.83 : x
  2. Step 2: Convert to fraction form
    395,557.95/545,858.72 = 232,211.83/x
  3. Step 3: Cross multiply
    395,557.95x = 545,858.72 × 232,211.83
  4. Step 4: Simplify right side
    395,557.95x = 126,754,849,766.95
  5. Step 5: Solve for x
    x = 126,754,849,766.95/395,557.95
  6. Step 6: Final answer
    x = 320,445.71

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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.