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Finding the Fourth Proportional to 490,024.63, 674,134.46 and 469,029.43

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Solution

The fourth proportional to 490,024.63, 674,134.46 and 469,029.43 is: 645,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,024.63 : 674,134.46 = 469,029.43 : x
  2. Step 2: Convert to fraction form
    490,024.63/674,134.46 = 469,029.43/x
  3. Step 3: Cross multiply
    490,024.63x = 674,134.46 × 469,029.43
  4. Step 4: Simplify right side
    490,024.63x = 316,188,898,146.49
  5. Step 5: Solve for x
    x = 316,188,898,146.49/490,024.63
  6. Step 6: Final answer
    x = 645,251.04

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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.