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Finding the Fourth Proportional to 488,266.60, 732,399.90 and 481,268.20

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Solution

The fourth proportional to 488,266.60, 732,399.90 and 481,268.20 is: 721,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,266.60 : 732,399.90 = 481,268.20 : x
  2. Step 2: Convert to fraction form
    488,266.60/732,399.90 = 481,268.20/x
  3. Step 3: Cross multiply
    488,266.60x = 732,399.90 × 481,268.20
  4. Step 4: Simplify right side
    488,266.60x = 352,480,781,553.18
  5. Step 5: Solve for x
    x = 352,480,781,553.18/488,266.60
  6. Step 6: Final answer
    x = 721,902.30

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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.