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Finding the Fourth Proportional to 431,737.80, 646,731.90 and 244,530.60

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Solution

The fourth proportional to 431,737.80, 646,731.90 and 244,530.60 is: 366,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,737.80 : 646,731.90 = 244,530.60 : x
  2. Step 2: Convert to fraction form
    431,737.80/646,731.90 = 244,530.60/x
  3. Step 3: Cross multiply
    431,737.80x = 646,731.90 × 244,530.60
  4. Step 4: Simplify right side
    431,737.80x = 158,145,739,546.14
  5. Step 5: Solve for x
    x = 158,145,739,546.14/431,737.80
  6. Step 6: Final answer
    x = 366,300.42

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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.