Home / 889,399.62-1,227,362.69-481,490.69

Finding the Fourth Proportional to 889,399.62, 1,227,362.69 and 481,490.69

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Solution

The fourth proportional to 889,399.62, 1,227,362.69 and 481,490.69 is: 664,452.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,399.62 : 1,227,362.69 = 481,490.69 : x
  2. Step 2: Convert to fraction form
    889,399.62/1,227,362.69 = 481,490.69/x
  3. Step 3: Cross multiply
    889,399.62x = 1,227,362.69 × 481,490.69
  4. Step 4: Simplify right side
    889,399.62x = 590,963,703,555.27
  5. Step 5: Solve for x
    x = 590,963,703,555.27/889,399.62
  6. Step 6: Final answer
    x = 664,452.39

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Double scale
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1.5x scale

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.