Home / 1,185,308.62-1,635,725.78-641,444.32

Finding the Fourth Proportional to 1,185,308.62, 1,635,725.78 and 641,444.32

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Solution

The fourth proportional to 1,185,308.62, 1,635,725.78 and 641,444.32 is: 885,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,308.62 : 1,635,725.78 = 641,444.32 : x
  2. Step 2: Convert to fraction form
    1,185,308.62/1,635,725.78 = 641,444.32/x
  3. Step 3: Cross multiply
    1,185,308.62x = 1,635,725.78 × 641,444.32
  4. Step 4: Simplify right side
    1,185,308.62x = 1,049,227,010,658.57
  5. Step 5: Solve for x
    x = 1,049,227,010,658.57/1,185,308.62
  6. Step 6: Final answer
    x = 885,193.10

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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.