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Finding the Fourth Proportional to 572,581.90, 858,872.85 and 520,093.90

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Solution

The fourth proportional to 572,581.90, 858,872.85 and 520,093.90 is: 780,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,581.90 : 858,872.85 = 520,093.90 : x
  2. Step 2: Convert to fraction form
    572,581.90/858,872.85 = 520,093.90/x
  3. Step 3: Cross multiply
    572,581.90x = 858,872.85 × 520,093.90
  4. Step 4: Simplify right side
    572,581.90x = 446,694,530,160.62
  5. Step 5: Solve for x
    x = 446,694,530,160.62/572,581.90
  6. Step 6: Final answer
    x = 780,140.85

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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.