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Finding the Fourth Proportional to 1,789,563.68, 2,469,638.94 and 1,015,246.34

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Solution

The fourth proportional to 1,789,563.68, 2,469,638.94 and 1,015,246.34 is: 1,401,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,563.68 : 2,469,638.94 = 1,015,246.34 : x
  2. Step 2: Convert to fraction form
    1,789,563.68/2,469,638.94 = 1,015,246.34/x
  3. Step 3: Cross multiply
    1,789,563.68x = 2,469,638.94 × 1,015,246.34
  4. Step 4: Simplify right side
    1,789,563.68x = 2,507,291,894,956.48
  5. Step 5: Solve for x
    x = 2,507,291,894,956.48/1,789,563.68
  6. Step 6: Final answer
    x = 1,401,063.24

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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.