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Finding the Fourth Proportional to 449,674.68, 620,552.69 and 245,725.61

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Solution

The fourth proportional to 449,674.68, 620,552.69 and 245,725.61 is: 339,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,674.68 : 620,552.69 = 245,725.61 : x
  2. Step 2: Convert to fraction form
    449,674.68/620,552.69 = 245,725.61/x
  3. Step 3: Cross multiply
    449,674.68x = 620,552.69 × 245,725.61
  4. Step 4: Simplify right side
    449,674.68x = 152,485,683,956.00
  5. Step 5: Solve for x
    x = 152,485,683,956.00/449,674.68
  6. Step 6: Final answer
    x = 339,102.22

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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.