Home / 1,185,794.90-1,636,396.60-641,930.28

Finding the Fourth Proportional to 1,185,794.90, 1,636,396.60 and 641,930.28

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Solution

The fourth proportional to 1,185,794.90, 1,636,396.60 and 641,930.28 is: 885,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,794.90 : 1,636,396.60 = 641,930.28 : x
  2. Step 2: Convert to fraction form
    1,185,794.90/1,636,396.60 = 641,930.28/x
  3. Step 3: Cross multiply
    1,185,794.90x = 1,636,396.60 × 641,930.28
  4. Step 4: Simplify right side
    1,185,794.90x = 1,050,452,527,629.05
  5. Step 5: Solve for x
    x = 1,050,452,527,629.05/1,185,794.90
  6. Step 6: Final answer
    x = 885,863.59

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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.