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Finding the Fourth Proportional to 571,272.72, 856,609.56 and 197,206.80

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Solution

The fourth proportional to 571,272.72, 856,609.56 and 197,206.80 is: 295,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,272.72 : 856,609.56 = 197,206.80 : x
  2. Step 2: Convert to fraction form
    571,272.72/856,609.56 = 197,206.80/x
  3. Step 3: Cross multiply
    571,272.72x = 856,609.56 × 197,206.80
  4. Step 4: Simplify right side
    571,272.72x = 168,929,230,177.01
  5. Step 5: Solve for x
    x = 168,929,230,177.01/571,272.72
  6. Step 6: Final answer
    x = 295,706.80

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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.