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Finding the Fourth Proportional to 417,703.88, 625,766.70 and 323,749.64

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Solution

The fourth proportional to 417,703.88, 625,766.70 and 323,749.64 is: 485,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,703.88 : 625,766.70 = 323,749.64 : x
  2. Step 2: Convert to fraction form
    417,703.88/625,766.70 = 323,749.64/x
  3. Step 3: Cross multiply
    417,703.88x = 625,766.70 × 323,749.64
  4. Step 4: Simplify right side
    417,703.88x = 202,591,743,848.99
  5. Step 5: Solve for x
    x = 202,591,743,848.99/417,703.88
  6. Step 6: Final answer
    x = 485,012.84

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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.