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Finding the Fourth Proportional to 496,128.68, 684,666.18 and 269,775.56

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Solution

The fourth proportional to 496,128.68, 684,666.18 and 269,775.56 is: 372,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,128.68 : 684,666.18 = 269,775.56 : x
  2. Step 2: Convert to fraction form
    496,128.68/684,666.18 = 269,775.56/x
  3. Step 3: Cross multiply
    496,128.68x = 684,666.18 × 269,775.56
  4. Step 4: Simplify right side
    496,128.68x = 184,706,202,122.56
  5. Step 5: Solve for x
    x = 184,706,202,122.56/496,128.68
  6. Step 6: Final answer
    x = 372,294.95

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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.