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Finding the Fourth Proportional to 539,272, 744,194.64 and 297,554.48

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Solution

The fourth proportional to 539,272, 744,194.64 and 297,554.48 is: 410,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,272 : 744,194.64 = 297,554.48 : x
  2. Step 2: Convert to fraction form
    539,272/744,194.64 = 297,554.48/x
  3. Step 3: Cross multiply
    539,272x = 744,194.64 × 297,554.48
  4. Step 4: Simplify right side
    539,272x = 221,438,449,123.99
  5. Step 5: Solve for x
    x = 221,438,449,123.99/539,272
  6. Step 6: Final answer
    x = 410,624.79

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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.