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Finding the Fourth Proportional to 539,609.94, 744,662.82 and 297,892.85

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Solution

The fourth proportional to 539,609.94, 744,662.82 and 297,892.85 is: 411,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,609.94 : 744,662.82 = 297,892.85 : x
  2. Step 2: Convert to fraction form
    539,609.94/744,662.82 = 297,892.85/x
  3. Step 3: Cross multiply
    539,609.94x = 744,662.82 × 297,892.85
  4. Step 4: Simplify right side
    539,609.94x = 221,829,726,015.52
  5. Step 5: Solve for x
    x = 221,829,726,015.52/539,609.94
  6. Step 6: Final answer
    x = 411,092.73

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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.