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Finding the Fourth Proportional to 449,873.75, 620,825.90 and 245,925.56

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Solution

The fourth proportional to 449,873.75, 620,825.90 and 245,925.56 is: 339,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,873.75 : 620,825.90 = 245,925.56 : x
  2. Step 2: Convert to fraction form
    449,873.75/620,825.90 = 245,925.56/x
  3. Step 3: Cross multiply
    449,873.75x = 620,825.90 × 245,925.56
  4. Step 4: Simplify right side
    449,873.75x = 152,676,957,120.00
  5. Step 5: Solve for x
    x = 152,676,957,120.00/449,873.75
  6. Step 6: Final answer
    x = 339,377.34

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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.