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Finding the Fourth Proportional to 605,416.65, 908,124.98 and 381,467.85

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Solution

The fourth proportional to 605,416.65, 908,124.98 and 381,467.85 is: 572,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,416.65 : 908,124.98 = 381,467.85 : x
  2. Step 2: Convert to fraction form
    605,416.65/908,124.98 = 381,467.85/x
  3. Step 3: Cross multiply
    605,416.65x = 908,124.98 × 381,467.85
  4. Step 4: Simplify right side
    605,416.65x = 346,420,481,744.55
  5. Step 5: Solve for x
    x = 346,420,481,744.55/605,416.65
  6. Step 6: Final answer
    x = 572,201.78

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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.