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Finding the Fourth Proportional to 467,246.70, 644,850.90 and 286,080.48

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Solution

The fourth proportional to 467,246.70, 644,850.90 and 286,080.48 is: 394,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,246.70 : 644,850.90 = 286,080.48 : x
  2. Step 2: Convert to fraction form
    467,246.70/644,850.90 = 286,080.48/x
  3. Step 3: Cross multiply
    467,246.70x = 644,850.90 × 286,080.48
  4. Step 4: Simplify right side
    467,246.70x = 184,479,255,000.43
  5. Step 5: Solve for x
    x = 184,479,255,000.43/467,246.70
  6. Step 6: Final answer
    x = 394,821.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.