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Finding the Fourth Proportional to 606,910.10, 911,349.30 and 439,604.60

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Solution

The fourth proportional to 606,910.10, 911,349.30 and 439,604.60 is: 660,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,910.10 : 911,349.30 = 439,604.60 : x
  2. Step 2: Convert to fraction form
    606,910.10/911,349.30 = 439,604.60/x
  3. Step 3: Cross multiply
    606,910.10x = 911,349.30 × 439,604.60
  4. Step 4: Simplify right side
    606,910.10x = 400,633,344,486.78
  5. Step 5: Solve for x
    x = 400,633,344,486.78/606,910.10
  6. Step 6: Final answer
    x = 660,119.75

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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.