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Finding the Fourth Proportional to 1,865,695.20, 2,796,469.20 and 1,024,850.40

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Solution

The fourth proportional to 1,865,695.20, 2,796,469.20 and 1,024,850.40 is: 1,536,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,695.20 : 2,796,469.20 = 1,024,850.40 : x
  2. Step 2: Convert to fraction form
    1,865,695.20/2,796,469.20 = 1,024,850.40/x
  3. Step 3: Cross multiply
    1,865,695.20x = 2,796,469.20 × 1,024,850.40
  4. Step 4: Simplify right side
    1,865,695.20x = 2,865,962,578,207.68
  5. Step 5: Solve for x
    x = 2,865,962,578,207.68/1,865,695.20
  6. Step 6: Final answer
    x = 1,536,136.54

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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.