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Finding the Fourth Proportional to 543,515.30, 814,981.35 and 227,615.30

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Solution

The fourth proportional to 543,515.30, 814,981.35 and 227,615.30 is: 341,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,515.30 : 814,981.35 = 227,615.30 : x
  2. Step 2: Convert to fraction form
    543,515.30/814,981.35 = 227,615.30/x
  3. Step 3: Cross multiply
    543,515.30x = 814,981.35 × 227,615.30
  4. Step 4: Simplify right side
    543,515.30x = 185,502,224,474.66
  5. Step 5: Solve for x
    x = 185,502,224,474.66/543,515.30
  6. Step 6: Final answer
    x = 341,300.83

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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.