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Finding the Fourth Proportional to 450,163.45, 674,495.43 and 316,763.41

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Solution

The fourth proportional to 450,163.45, 674,495.43 and 316,763.41 is: 474,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,163.45 : 674,495.43 = 316,763.41 : x
  2. Step 2: Convert to fraction form
    450,163.45/674,495.43 = 316,763.41/x
  3. Step 3: Cross multiply
    450,163.45x = 674,495.43 × 316,763.41
  4. Step 4: Simplify right side
    450,163.45x = 213,655,471,717.69
  5. Step 5: Solve for x
    x = 213,655,471,717.69/450,163.45
  6. Step 6: Final answer
    x = 474,617.55

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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.