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Finding the Fourth Proportional to 355,913.20, 533,092.20 and 276,403.60

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Solution

The fourth proportional to 355,913.20, 533,092.20 and 276,403.60 is: 414,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,913.20 : 533,092.20 = 276,403.60 : x
  2. Step 2: Convert to fraction form
    355,913.20/533,092.20 = 276,403.60/x
  3. Step 3: Cross multiply
    355,913.20x = 533,092.20 × 276,403.60
  4. Step 4: Simplify right side
    355,913.20x = 147,348,603,211.92
  5. Step 5: Solve for x
    x = 147,348,603,211.92/355,913.20
  6. Step 6: Final answer
    x = 414,001.51

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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.