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Finding the Fourth Proportional to 574,415.11, 861,223.67 and 254,392.59

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Solution

The fourth proportional to 574,415.11, 861,223.67 and 254,392.59 is: 381,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,415.11 : 861,223.67 = 254,392.59 : x
  2. Step 2: Convert to fraction form
    574,415.11/861,223.67 = 254,392.59/x
  3. Step 3: Cross multiply
    574,415.11x = 861,223.67 × 254,392.59
  4. Step 4: Simplify right side
    574,415.11x = 219,088,920,861.70
  5. Step 5: Solve for x
    x = 219,088,920,861.70/574,415.11
  6. Step 6: Final answer
    x = 381,412.18

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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.