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Finding the Fourth Proportional to 536,610.40, 803,749.20 and 325,880.80

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Solution

The fourth proportional to 536,610.40, 803,749.20 and 325,880.80 is: 488,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,610.40 : 803,749.20 = 325,880.80 : x
  2. Step 2: Convert to fraction form
    536,610.40/803,749.20 = 325,880.80/x
  3. Step 3: Cross multiply
    536,610.40x = 803,749.20 × 325,880.80
  4. Step 4: Simplify right side
    536,610.40x = 261,926,432,295.36
  5. Step 5: Solve for x
    x = 261,926,432,295.36/536,610.40
  6. Step 6: Final answer
    x = 488,112.85

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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.