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Finding the Fourth Proportional to 394,363.72, 544,191.06 and 224,564.68

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Solution

The fourth proportional to 394,363.72, 544,191.06 and 224,564.68 is: 309,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,363.72 : 544,191.06 = 224,564.68 : x
  2. Step 2: Convert to fraction form
    394,363.72/544,191.06 = 224,564.68/x
  3. Step 3: Cross multiply
    394,363.72x = 544,191.06 × 224,564.68
  4. Step 4: Simplify right side
    394,363.72x = 122,206,091,247.76
  5. Step 5: Solve for x
    x = 122,206,091,247.76/394,363.72
  6. Step 6: Final answer
    x = 309,881.68

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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.