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Finding the Fourth Proportional to 504,090.80, 756,136.20 and 325,631.60

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Solution

The fourth proportional to 504,090.80, 756,136.20 and 325,631.60 is: 488,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,090.80 : 756,136.20 = 325,631.60 : x
  2. Step 2: Convert to fraction form
    504,090.80/756,136.20 = 325,631.60/x
  3. Step 3: Cross multiply
    504,090.80x = 756,136.20 × 325,631.60
  4. Step 4: Simplify right side
    504,090.80x = 246,221,840,623.92
  5. Step 5: Solve for x
    x = 246,221,840,623.92/504,090.80
  6. Step 6: Final answer
    x = 488,447.40

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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.