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Finding the Fourth Proportional to 1,376,734.07, 1,899,549.41 and 825,536.29

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Solution

The fourth proportional to 1,376,734.07, 1,899,549.41 and 825,536.29 is: 1,139,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,734.07 : 1,899,549.41 = 825,536.29 : x
  2. Step 2: Convert to fraction form
    1,376,734.07/1,899,549.41 = 825,536.29/x
  3. Step 3: Cross multiply
    1,376,734.07x = 1,899,549.41 × 825,536.29
  4. Step 4: Simplify right side
    1,376,734.07x = 1,568,146,972,603.09
  5. Step 5: Solve for x
    x = 1,568,146,972,603.09/1,376,734.07
  6. Step 6: Final answer
    x = 1,139,034.04

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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.