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Finding the Fourth Proportional to 394,624.12, 544,568.00 and 249,508.01

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Solution

The fourth proportional to 394,624.12, 544,568.00 and 249,508.01 is: 344,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,624.12 : 544,568.00 = 249,508.01 : x
  2. Step 2: Convert to fraction form
    394,624.12/544,568.00 = 249,508.01/x
  3. Step 3: Cross multiply
    394,624.12x = 544,568.00 × 249,508.01
  4. Step 4: Simplify right side
    394,624.12x = 135,874,078,103.56
  5. Step 5: Solve for x
    x = 135,874,078,103.56/394,624.12
  6. Step 6: Final answer
    x = 344,312.66

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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.