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Finding the Fourth Proportional to 1,406,731.92, 1,941,175.14 and 825,893.88

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Solution

The fourth proportional to 1,406,731.92, 1,941,175.14 and 825,893.88 is: 1,139,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,731.92 : 1,941,175.14 = 825,893.88 : x
  2. Step 2: Convert to fraction form
    1,406,731.92/1,941,175.14 = 825,893.88/x
  3. Step 3: Cross multiply
    1,406,731.92x = 1,941,175.14 × 825,893.88
  4. Step 4: Simplify right side
    1,406,731.92x = 1,603,204,668,134.14
  5. Step 5: Solve for x
    x = 1,603,204,668,134.14/1,406,731.92
  6. Step 6: Final answer
    x = 1,139,666.09

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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.