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Finding the Fourth Proportional to 571,498.48, 856,647.64 and 192,287.56

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Solution

The fourth proportional to 571,498.48, 856,647.64 and 192,287.56 is: 288,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,498.48 : 856,647.64 = 192,287.56 : x
  2. Step 2: Convert to fraction form
    571,498.48/856,647.64 = 192,287.56/x
  3. Step 3: Cross multiply
    571,498.48x = 856,647.64 × 192,287.56
  4. Step 4: Simplify right side
    571,498.48x = 164,722,683,098.70
  5. Step 5: Solve for x
    x = 164,722,683,098.70/571,498.48
  6. Step 6: Final answer
    x = 288,229.44

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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.