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Finding the Fourth Proportional to 606,937.20, 910,405.80 and 381,566.85

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Solution

The fourth proportional to 606,937.20, 910,405.80 and 381,566.85 is: 572,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,937.20 : 910,405.80 = 381,566.85 : x
  2. Step 2: Convert to fraction form
    606,937.20/910,405.80 = 381,566.85/x
  3. Step 3: Cross multiply
    606,937.20x = 910,405.80 × 381,566.85
  4. Step 4: Simplify right side
    606,937.20x = 347,380,673,327.73
  5. Step 5: Solve for x
    x = 347,380,673,327.73/606,937.20
  6. Step 6: Final answer
    x = 572,350.28

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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.