Home / 889,388.98-1,227,355.27-481,490.67

Finding the Fourth Proportional to 889,388.98, 1,227,355.27 and 481,490.67

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Solution

The fourth proportional to 889,388.98, 1,227,355.27 and 481,490.67 is: 664,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,388.98 : 1,227,355.27 = 481,490.67 : x
  2. Step 2: Convert to fraction form
    889,388.98/1,227,355.27 = 481,490.67/x
  3. Step 3: Cross multiply
    889,388.98x = 1,227,355.27 × 481,490.67
  4. Step 4: Simplify right side
    889,388.98x = 590,960,111,280.33
  5. Step 5: Solve for x
    x = 590,960,111,280.33/889,388.98
  6. Step 6: Final answer
    x = 664,456.30

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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.