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Finding the Fourth Proportional to 363,912.60, 545,868.90 and 127,230.60

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Solution

The fourth proportional to 363,912.60, 545,868.90 and 127,230.60 is: 190,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,912.60 : 545,868.90 = 127,230.60 : x
  2. Step 2: Convert to fraction form
    363,912.60/545,868.90 = 127,230.60/x
  3. Step 3: Cross multiply
    363,912.60x = 545,868.90 × 127,230.60
  4. Step 4: Simplify right side
    363,912.60x = 69,451,227,668.34
  5. Step 5: Solve for x
    x = 69,451,227,668.34/363,912.60
  6. Step 6: Final answer
    x = 190,845.90

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1.5x scale

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.