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Finding the Fourth Proportional to 496,936.20, 744,748.20 and 440,511.60

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Solution

The fourth proportional to 496,936.20, 744,748.20 and 440,511.60 is: 660,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,936.20 : 744,748.20 = 440,511.60 : x
  2. Step 2: Convert to fraction form
    496,936.20/744,748.20 = 440,511.60/x
  3. Step 3: Cross multiply
    496,936.20x = 744,748.20 × 440,511.60
  4. Step 4: Simplify right side
    496,936.20x = 328,070,221,179.12
  5. Step 5: Solve for x
    x = 328,070,221,179.12/496,936.20
  6. Step 6: Final answer
    x = 660,185.80

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Double scale
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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.