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Finding the Fourth Proportional to 539,028.72, 743,863.14 and 297,317.82

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Solution

The fourth proportional to 539,028.72, 743,863.14 and 297,317.82 is: 410,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,028.72 : 743,863.14 = 297,317.82 : x
  2. Step 2: Convert to fraction form
    539,028.72/743,863.14 = 297,317.82/x
  3. Step 3: Cross multiply
    539,028.72x = 743,863.14 × 297,317.82
  4. Step 4: Simplify right side
    539,028.72x = 221,163,767,163.16
  5. Step 5: Solve for x
    x = 221,163,767,163.16/539,028.72
  6. Step 6: Final answer
    x = 410,300.53

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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.