Home / 1,004,143.64-1,385,371.82-641,779.61

Finding the Fourth Proportional to 1,004,143.64, 1,385,371.82 and 641,779.61

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Solution

The fourth proportional to 1,004,143.64, 1,385,371.82 and 641,779.61 is: 885,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,143.64 : 1,385,371.82 = 641,779.61 : x
  2. Step 2: Convert to fraction form
    1,004,143.64/1,385,371.82 = 641,779.61/x
  3. Step 3: Cross multiply
    1,004,143.64x = 1,385,371.82 × 641,779.61
  4. Step 4: Simplify right side
    1,004,143.64x = 889,103,381,022.18
  5. Step 5: Solve for x
    x = 889,103,381,022.18/1,004,143.64
  6. Step 6: Final answer
    x = 885,434.46

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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.