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Finding the Fourth Proportional to 504,489,613.20, 756,734,419.80 and 504,489,613.20

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Solution

The fourth proportional to 504,489,613.20, 756,734,419.80 and 504,489,613.20 is: 756,734,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,489,613.20 : 756,734,419.80 = 504,489,613.20 : x
  2. Step 2: Convert to fraction form
    504,489,613.20/756,734,419.80 = 504,489,613.20/x
  3. Step 3: Cross multiply
    504,489,613.20x = 756,734,419.80 × 504,489,613.20
  4. Step 4: Simplify right side
    504,489,613.20x = 381,764,654,740,028,416
  5. Step 5: Solve for x
    x = 381,764,654,740,028,416/504,489,613.20
  6. Step 6: Final answer
    x = 756,734,419.80

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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.