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Finding the Fourth Proportional to 517,028.76, 775,773.79 and 264,176.12

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Solution

The fourth proportional to 517,028.76, 775,773.79 and 264,176.12 is: 396,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,028.76 : 775,773.79 = 264,176.12 : x
  2. Step 2: Convert to fraction form
    517,028.76/775,773.79 = 264,176.12/x
  3. Step 3: Cross multiply
    517,028.76x = 775,773.79 × 264,176.12
  4. Step 4: Simplify right side
    517,028.76x = 204,940,911,118.89
  5. Step 5: Solve for x
    x = 204,940,911,118.89/517,028.76
  6. Step 6: Final answer
    x = 396,382.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.