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Finding the Fourth Proportional to 488,090.80, 732,500.70 and 251,311.60

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Solution

The fourth proportional to 488,090.80, 732,500.70 and 251,311.60 is: 377,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,090.80 : 732,500.70 = 251,311.60 : x
  2. Step 2: Convert to fraction form
    488,090.80/732,500.70 = 251,311.60/x
  3. Step 3: Cross multiply
    488,090.80x = 732,500.70 × 251,311.60
  4. Step 4: Simplify right side
    488,090.80x = 184,085,922,918.12
  5. Step 5: Solve for x
    x = 184,085,922,918.12/488,090.80
  6. Step 6: Final answer
    x = 377,155.08

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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.