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Finding the Fourth Proportional to 433,004.40, 649,506.60 and 291,286.80

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Solution

The fourth proportional to 433,004.40, 649,506.60 and 291,286.80 is: 436,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,004.40 : 649,506.60 = 291,286.80 : x
  2. Step 2: Convert to fraction form
    433,004.40/649,506.60 = 291,286.80/x
  3. Step 3: Cross multiply
    433,004.40x = 649,506.60 × 291,286.80
  4. Step 4: Simplify right side
    433,004.40x = 189,192,699,092.88
  5. Step 5: Solve for x
    x = 189,192,699,092.88/433,004.40
  6. Step 6: Final answer
    x = 436,930.20

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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.