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Finding the Fourth Proportional to 539,443.37, 744,428.19 and 297,725.94

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Solution

The fourth proportional to 539,443.37, 744,428.19 and 297,725.94 is: 410,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,443.37 : 744,428.19 = 297,725.94 : x
  2. Step 2: Convert to fraction form
    539,443.37/744,428.19 = 297,725.94/x
  3. Step 3: Cross multiply
    539,443.37x = 744,428.19 × 297,725.94
  4. Step 4: Simplify right side
    539,443.37x = 221,635,582,630.25
  5. Step 5: Solve for x
    x = 221,635,582,630.25/539,443.37
  6. Step 6: Final answer
    x = 410,859.78

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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.