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Finding the Fourth Proportional to 1,363,676.40, 1,881,786.71 and 751,795.72

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Solution

The fourth proportional to 1,363,676.40, 1,881,786.71 and 751,795.72 is: 1,037,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,676.40 : 1,881,786.71 = 751,795.72 : x
  2. Step 2: Convert to fraction form
    1,363,676.40/1,881,786.71 = 751,795.72/x
  3. Step 3: Cross multiply
    1,363,676.40x = 1,881,786.71 × 751,795.72
  4. Step 4: Simplify right side
    1,363,676.40x = 1,414,719,186,067.44
  5. Step 5: Solve for x
    x = 1,414,719,186,067.44/1,363,676.40
  6. Step 6: Final answer
    x = 1,037,430.28

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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.