Home / 1,004,128.64-1,385,355.30-641,761.64

Finding the Fourth Proportional to 1,004,128.64, 1,385,355.30 and 641,761.64

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Solution

The fourth proportional to 1,004,128.64, 1,385,355.30 and 641,761.64 is: 885,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,128.64 : 1,385,355.30 = 641,761.64 : x
  2. Step 2: Convert to fraction form
    1,004,128.64/1,385,355.30 = 641,761.64/x
  3. Step 3: Cross multiply
    1,004,128.64x = 1,385,355.30 × 641,761.64
  4. Step 4: Simplify right side
    1,004,128.64x = 889,067,889,310.69
  5. Step 5: Solve for x
    x = 889,067,889,310.69/1,004,128.64
  6. Step 6: Final answer
    x = 885,412.34

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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.