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Finding the Fourth Proportional to 1,296,579.07, 1,945,174.10 and 443,660.01

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Solution

The fourth proportional to 1,296,579.07, 1,945,174.10 and 443,660.01 is: 665,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,579.07 : 1,945,174.10 = 443,660.01 : x
  2. Step 2: Convert to fraction form
    1,296,579.07/1,945,174.10 = 443,660.01/x
  3. Step 3: Cross multiply
    1,296,579.07x = 1,945,174.10 × 443,660.01
  4. Step 4: Simplify right side
    1,296,579.07x = 862,995,960,657.74
  5. Step 5: Solve for x
    x = 862,995,960,657.74/1,296,579.07
  6. Step 6: Final answer
    x = 665,594.55

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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.