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Finding the Fourth Proportional to 606,838.56, 909,390.30 and 445,650.18

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Solution

The fourth proportional to 606,838.56, 909,390.30 and 445,650.18 is: 667,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,838.56 : 909,390.30 = 445,650.18 : x
  2. Step 2: Convert to fraction form
    606,838.56/909,390.30 = 445,650.18/x
  3. Step 3: Cross multiply
    606,838.56x = 909,390.30 × 445,650.18
  4. Step 4: Simplify right side
    606,838.56x = 405,269,950,885.25
  5. Step 5: Solve for x
    x = 405,269,950,885.25/606,838.56
  6. Step 6: Final answer
    x = 667,838.17

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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.