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Finding the Fourth Proportional to 572,008.74, 857,676.67 and 217,047.70

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Solution

The fourth proportional to 572,008.74, 857,676.67 and 217,047.70 is: 325,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,008.74 : 857,676.67 = 217,047.70 : x
  2. Step 2: Convert to fraction form
    572,008.74/857,676.67 = 217,047.70/x
  3. Step 3: Cross multiply
    572,008.74x = 857,676.67 × 217,047.70
  4. Step 4: Simplify right side
    572,008.74x = 186,156,747,481.92
  5. Step 5: Solve for x
    x = 186,156,747,481.92/572,008.74
  6. Step 6: Final answer
    x = 325,443.89

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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.