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Finding the Fourth Proportional to 436,151.80, 654,227.70 and 432,004.60

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Solution

The fourth proportional to 436,151.80, 654,227.70 and 432,004.60 is: 648,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,151.80 : 654,227.70 = 432,004.60 : x
  2. Step 2: Convert to fraction form
    436,151.80/654,227.70 = 432,004.60/x
  3. Step 3: Cross multiply
    436,151.80x = 654,227.70 × 432,004.60
  4. Step 4: Simplify right side
    436,151.80x = 282,629,375,847.42
  5. Step 5: Solve for x
    x = 282,629,375,847.42/436,151.80
  6. Step 6: Final answer
    x = 648,006.90

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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.