Home / 481,176.40-663,789.56-317,896.96

Finding the Fourth Proportional to 481,176.40, 663,789.56 and 317,896.96

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Solution

The fourth proportional to 481,176.40, 663,789.56 and 317,896.96 is: 438,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,176.40 : 663,789.56 = 317,896.96 : x
  2. Step 2: Convert to fraction form
    481,176.40/663,789.56 = 317,896.96/x
  3. Step 3: Cross multiply
    481,176.40x = 663,789.56 × 317,896.96
  4. Step 4: Simplify right side
    481,176.40x = 211,016,683,203.74
  5. Step 5: Solve for x
    x = 211,016,683,203.74/481,176.40
  6. Step 6: Final answer
    x = 438,543.29

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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.