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Finding the Fourth Proportional to 355,539.60, 532,013.40 and 262,227.60

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Solution

The fourth proportional to 355,539.60, 532,013.40 and 262,227.60 is: 392,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,539.60 : 532,013.40 = 262,227.60 : x
  2. Step 2: Convert to fraction form
    355,539.60/532,013.40 = 262,227.60/x
  3. Step 3: Cross multiply
    355,539.60x = 532,013.40 × 262,227.60
  4. Step 4: Simplify right side
    355,539.60x = 139,508,597,049.84
  5. Step 5: Solve for x
    x = 139,508,597,049.84/355,539.60
  6. Step 6: Final answer
    x = 392,385.54

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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.