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Finding the Fourth Proportional to 1,794,128, 2,691,192 and 729,749.12

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Solution

The fourth proportional to 1,794,128, 2,691,192 and 729,749.12 is: 1,094,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794,128 : 2,691,192 = 729,749.12 : x
  2. Step 2: Convert to fraction form
    1,794,128/2,691,192 = 729,749.12/x
  3. Step 3: Cross multiply
    1,794,128x = 2,691,192 × 729,749.12
  4. Step 4: Simplify right side
    1,794,128x = 1,963,894,993,751.04
  5. Step 5: Solve for x
    x = 1,963,894,993,751.04/1,794,128
  6. Step 6: Final answer
    x = 1,094,623.68

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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.