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Finding the Fourth Proportional to 488,786.10, 732,851.10 and 236,187.60

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Solution

The fourth proportional to 488,786.10, 732,851.10 and 236,187.60 is: 354,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,786.10 : 732,851.10 = 236,187.60 : x
  2. Step 2: Convert to fraction form
    488,786.10/732,851.10 = 236,187.60/x
  3. Step 3: Cross multiply
    488,786.10x = 732,851.10 × 236,187.60
  4. Step 4: Simplify right side
    488,786.10x = 173,090,342,466.36
  5. Step 5: Solve for x
    x = 173,090,342,466.36/488,786.10
  6. Step 6: Final answer
    x = 354,122.88

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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.