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Finding the Fourth Proportional to 256,259.80, 384,389.70 and 244,012.60

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Solution

The fourth proportional to 256,259.80, 384,389.70 and 244,012.60 is: 366,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,259.80 : 384,389.70 = 244,012.60 : x
  2. Step 2: Convert to fraction form
    256,259.80/384,389.70 = 244,012.60/x
  3. Step 3: Cross multiply
    256,259.80x = 384,389.70 × 244,012.60
  4. Step 4: Simplify right side
    256,259.80x = 93,795,930,110.22
  5. Step 5: Solve for x
    x = 93,795,930,110.22/256,259.80
  6. Step 6: Final answer
    x = 366,018.90

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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.