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Finding the Fourth Proportional to 363,791.80, 545,784.90 and 324,620.20

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Solution

The fourth proportional to 363,791.80, 545,784.90 and 324,620.20 is: 487,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,791.80 : 545,784.90 = 324,620.20 : x
  2. Step 2: Convert to fraction form
    363,791.80/545,784.90 = 324,620.20/x
  3. Step 3: Cross multiply
    363,791.80x = 545,784.90 × 324,620.20
  4. Step 4: Simplify right side
    363,791.80x = 177,172,803,394.98
  5. Step 5: Solve for x
    x = 177,172,803,394.98/363,791.80
  6. Step 6: Final answer
    x = 487,017.03

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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.