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Finding the Fourth Proportional to 1,424,195.22, 1,965,340.14 and 812,546.00

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Solution

The fourth proportional to 1,424,195.22, 1,965,340.14 and 812,546.00 is: 1,121,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,195.22 : 1,965,340.14 = 812,546.00 : x
  2. Step 2: Convert to fraction form
    1,424,195.22/1,965,340.14 = 812,546.00/x
  3. Step 3: Cross multiply
    1,424,195.22x = 1,965,340.14 × 812,546.00
  4. Step 4: Simplify right side
    1,424,195.22x = 1,596,929,259,569.74
  5. Step 5: Solve for x
    x = 1,596,929,259,569.74/1,424,195.22
  6. Step 6: Final answer
    x = 1,121,285.37

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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.