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Finding the Fourth Proportional to 462,940.89, 694,037.64 and 425,573.97

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Solution

The fourth proportional to 462,940.89, 694,037.64 and 425,573.97 is: 638,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,940.89 : 694,037.64 = 425,573.97 : x
  2. Step 2: Convert to fraction form
    462,940.89/694,037.64 = 425,573.97/x
  3. Step 3: Cross multiply
    462,940.89x = 694,037.64 × 425,573.97
  4. Step 4: Simplify right side
    462,940.89x = 295,364,353,784.23
  5. Step 5: Solve for x
    x = 295,364,353,784.23/462,940.89
  6. Step 6: Final answer
    x = 638,017.42

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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.