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Finding the Fourth Proportional to 619,383.54, 854,573.54 and 361,271.74

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Solution

The fourth proportional to 619,383.54, 854,573.54 and 361,271.74 is: 498,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,383.54 : 854,573.54 = 361,271.74 : x
  2. Step 2: Convert to fraction form
    619,383.54/854,573.54 = 361,271.74/x
  3. Step 3: Cross multiply
    619,383.54x = 854,573.54 × 361,271.74
  4. Step 4: Simplify right side
    619,383.54x = 308,733,269,753.76
  5. Step 5: Solve for x
    x = 308,733,269,753.76/619,383.54
  6. Step 6: Final answer
    x = 498,452.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.