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Finding the Fourth Proportional to 412,935.40, 619,767.60 and 244,244.80

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Solution

The fourth proportional to 412,935.40, 619,767.60 and 244,244.80 is: 366,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,935.40 : 619,767.60 = 244,244.80 : x
  2. Step 2: Convert to fraction form
    412,935.40/619,767.60 = 244,244.80/x
  3. Step 3: Cross multiply
    412,935.40x = 619,767.60 × 244,244.80
  4. Step 4: Simplify right side
    412,935.40x = 151,375,013,508.48
  5. Step 5: Solve for x
    x = 151,375,013,508.48/412,935.40
  6. Step 6: Final answer
    x = 366,582.80

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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.