Home / 863,628.28-1,191,809.09-481,679.66

Finding the Fourth Proportional to 863,628.28, 1,191,809.09 and 481,679.66

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Solution

The fourth proportional to 863,628.28, 1,191,809.09 and 481,679.66 is: 664,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,628.28 : 1,191,809.09 = 481,679.66 : x
  2. Step 2: Convert to fraction form
    863,628.28/1,191,809.09 = 481,679.66/x
  3. Step 3: Cross multiply
    863,628.28x = 1,191,809.09 × 481,679.66
  4. Step 4: Simplify right side
    863,628.28x = 574,070,201,439.83
  5. Step 5: Solve for x
    x = 574,070,201,439.83/863,628.28
  6. Step 6: Final answer
    x = 664,719.09

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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.