Home / 1,185,296.51-1,635,702.71-641,431.46

Finding the Fourth Proportional to 1,185,296.51, 1,635,702.71 and 641,431.46

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Solution

The fourth proportional to 1,185,296.51, 1,635,702.71 and 641,431.46 is: 885,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,296.51 : 1,635,702.71 = 641,431.46 : x
  2. Step 2: Convert to fraction form
    1,185,296.51/1,635,702.71 = 641,431.46/x
  3. Step 3: Cross multiply
    1,185,296.51x = 1,635,702.71 × 641,431.46
  4. Step 4: Simplify right side
    1,185,296.51x = 1,049,191,166,015.59
  5. Step 5: Solve for x
    x = 1,049,191,166,015.59/1,185,296.51
  6. Step 6: Final answer
    x = 885,171.91

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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.