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Finding the Fourth Proportional to 519,900.89, 779,171.90 and 376,290.27

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Solution

The fourth proportional to 519,900.89, 779,171.90 and 376,290.27 is: 563,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,900.89 : 779,171.90 = 376,290.27 : x
  2. Step 2: Convert to fraction form
    519,900.89/779,171.90 = 376,290.27/x
  3. Step 3: Cross multiply
    519,900.89x = 779,171.90 × 376,290.27
  4. Step 4: Simplify right side
    519,900.89x = 293,194,802,745.96
  5. Step 5: Solve for x
    x = 293,194,802,745.96/519,900.89
  6. Step 6: Final answer
    x = 563,943.65

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1.5x scale

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.