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Finding the Fourth Proportional to 572,492.70, 859,067.10 and 217,761.30

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Solution

The fourth proportional to 572,492.70, 859,067.10 and 217,761.30 is: 326,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,492.70 : 859,067.10 = 217,761.30 : x
  2. Step 2: Convert to fraction form
    572,492.70/859,067.10 = 217,761.30/x
  3. Step 3: Cross multiply
    572,492.70x = 859,067.10 × 217,761.30
  4. Step 4: Simplify right side
    572,492.70x = 187,071,568,483.23
  5. Step 5: Solve for x
    x = 187,071,568,483.23/572,492.70
  6. Step 6: Final answer
    x = 326,766.73

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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.