Home / 1,285,905.90-1,928,858.85-432,906.24

Finding the Fourth Proportional to 1,285,905.90, 1,928,858.85 and 432,906.24

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Solution

The fourth proportional to 1,285,905.90, 1,928,858.85 and 432,906.24 is: 649,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,905.90 : 1,928,858.85 = 432,906.24 : x
  2. Step 2: Convert to fraction form
    1,285,905.90/1,928,858.85 = 432,906.24/x
  3. Step 3: Cross multiply
    1,285,905.90x = 1,928,858.85 × 432,906.24
  4. Step 4: Simplify right side
    1,285,905.90x = 835,015,032,244.22
  5. Step 5: Solve for x
    x = 835,015,032,244.22/1,285,905.90
  6. Step 6: Final answer
    x = 649,359.36

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.