Home / 1,185,265.64-1,635,654.12-641,389.52

Finding the Fourth Proportional to 1,185,265.64, 1,635,654.12 and 641,389.52

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Solution

The fourth proportional to 1,185,265.64, 1,635,654.12 and 641,389.52 is: 885,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,265.64 : 1,635,654.12 = 641,389.52 : x
  2. Step 2: Convert to fraction form
    1,185,265.64/1,635,654.12 = 641,389.52/x
  3. Step 3: Cross multiply
    1,185,265.64x = 1,635,654.12 × 641,389.52
  4. Step 4: Simplify right side
    1,185,265.64x = 1,049,091,410,912.82
  5. Step 5: Solve for x
    x = 1,049,091,410,912.82/1,185,265.64
  6. Step 6: Final answer
    x = 885,110.79

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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.