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Finding the Fourth Proportional to 1,581,892.73, 2,183,001.11 and 856,723.86

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Solution

The fourth proportional to 1,581,892.73, 2,183,001.11 and 856,723.86 is: 1,182,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,892.73 : 2,183,001.11 = 856,723.86 : x
  2. Step 2: Convert to fraction form
    1,581,892.73/2,183,001.11 = 856,723.86/x
  3. Step 3: Cross multiply
    1,581,892.73x = 2,183,001.11 × 856,723.86
  4. Step 4: Simplify right side
    1,581,892.73x = 1,870,229,133,059.87
  5. Step 5: Solve for x
    x = 1,870,229,133,059.87/1,581,892.73
  6. Step 6: Final answer
    x = 1,182,273.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.