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Finding the Fourth Proportional to 574,570.80, 861,856.56 and 274,980.96

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Solution

The fourth proportional to 574,570.80, 861,856.56 and 274,980.96 is: 412,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,570.80 : 861,856.56 = 274,980.96 : x
  2. Step 2: Convert to fraction form
    574,570.80/861,856.56 = 274,980.96/x
  3. Step 3: Cross multiply
    574,570.80x = 861,856.56 × 274,980.96
  4. Step 4: Simplify right side
    574,570.80x = 236,994,144,251.10
  5. Step 5: Solve for x
    x = 236,994,144,251.10/574,570.80
  6. Step 6: Final answer
    x = 412,471.61

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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.