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Finding the Fourth Proportional to 664,490.90, 996,736.35 and 440,104.70

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Solution

The fourth proportional to 664,490.90, 996,736.35 and 440,104.70 is: 660,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,490.90 : 996,736.35 = 440,104.70 : x
  2. Step 2: Convert to fraction form
    664,490.90/996,736.35 = 440,104.70/x
  3. Step 3: Cross multiply
    664,490.90x = 996,736.35 × 440,104.70
  4. Step 4: Simplify right side
    664,490.90x = 438,668,352,295.85
  5. Step 5: Solve for x
    x = 438,668,352,295.85/664,490.90
  6. Step 6: Final answer
    x = 660,157.05

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Similar ratio
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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.