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Finding the Fourth Proportional to 542,950.90, 813,114.15 and 519,331.30

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Solution

The fourth proportional to 542,950.90, 813,114.15 and 519,331.30 is: 777,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,950.90 : 813,114.15 = 519,331.30 : x
  2. Step 2: Convert to fraction form
    542,950.90/813,114.15 = 519,331.30/x
  3. Step 3: Cross multiply
    542,950.90x = 813,114.15 × 519,331.30
  4. Step 4: Simplify right side
    542,950.90x = 422,275,628,567.90
  5. Step 5: Solve for x
    x = 422,275,628,567.90/542,950.90
  6. Step 6: Final answer
    x = 777,741.83

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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.