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Finding the Fourth Proportional to 619,092.76, 854,530.50 and 404,266.36

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Solution

The fourth proportional to 619,092.76, 854,530.50 and 404,266.36 is: 558,006.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,092.76 : 854,530.50 = 404,266.36 : x
  2. Step 2: Convert to fraction form
    619,092.76/854,530.50 = 404,266.36/x
  3. Step 3: Cross multiply
    619,092.76x = 854,530.50 × 404,266.36
  4. Step 4: Simplify right side
    619,092.76x = 345,457,934,743.98
  5. Step 5: Solve for x
    x = 345,457,934,743.98/619,092.76
  6. Step 6: Final answer
    x = 558,006.74

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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.