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Finding the Fourth Proportional to 1,376,044.92, 1,898,877 and 764,236.80

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Solution

The fourth proportional to 1,376,044.92, 1,898,877 and 764,236.80 is: 1,054,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,044.92 : 1,898,877 = 764,236.80 : x
  2. Step 2: Convert to fraction form
    1,376,044.92/1,898,877 = 764,236.80/x
  3. Step 3: Cross multiply
    1,376,044.92x = 1,898,877 × 764,236.80
  4. Step 4: Simplify right side
    1,376,044.92x = 1,451,191,682,073.60
  5. Step 5: Solve for x
    x = 1,451,191,682,073.60/1,376,044.92
  6. Step 6: Final answer
    x = 1,054,610.69

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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.