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Finding the Fourth Proportional to 363,618.40, 545,427.60 and 237,647.20

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Solution

The fourth proportional to 363,618.40, 545,427.60 and 237,647.20 is: 356,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,618.40 : 545,427.60 = 237,647.20 : x
  2. Step 2: Convert to fraction form
    363,618.40/545,427.60 = 237,647.20/x
  3. Step 3: Cross multiply
    363,618.40x = 545,427.60 × 237,647.20
  4. Step 4: Simplify right side
    363,618.40x = 129,619,341,942.72
  5. Step 5: Solve for x
    x = 129,619,341,942.72/363,618.40
  6. Step 6: Final answer
    x = 356,470.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.