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Finding the Fourth Proportional to 598,553.56, 825,334.14 and 489,316.96

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Solution

The fourth proportional to 598,553.56, 825,334.14 and 489,316.96 is: 674,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,553.56 : 825,334.14 = 489,316.96 : x
  2. Step 2: Convert to fraction form
    598,553.56/825,334.14 = 489,316.96/x
  3. Step 3: Cross multiply
    598,553.56x = 825,334.14 × 489,316.96
  4. Step 4: Simplify right side
    598,553.56x = 403,849,992,369.01
  5. Step 5: Solve for x
    x = 403,849,992,369.01/598,553.56
  6. Step 6: Final answer
    x = 674,709.87

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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.