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Finding the Fourth Proportional to 488,459.20, 732,775.20 and 173,099.20

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Solution

The fourth proportional to 488,459.20, 732,775.20 and 173,099.20 is: 259,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,459.20 : 732,775.20 = 173,099.20 : x
  2. Step 2: Convert to fraction form
    488,459.20/732,775.20 = 173,099.20/x
  3. Step 3: Cross multiply
    488,459.20x = 732,775.20 × 173,099.20
  4. Step 4: Simplify right side
    488,459.20x = 126,842,800,899.84
  5. Step 5: Solve for x
    x = 126,842,800,899.84/488,459.20
  6. Step 6: Final answer
    x = 259,679.42

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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.