Home / 814,232.70-1,221,349.05-394,328.70

Finding the Fourth Proportional to 814,232.70, 1,221,349.05 and 394,328.70

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Solution

The fourth proportional to 814,232.70, 1,221,349.05 and 394,328.70 is: 591,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,232.70 : 1,221,349.05 = 394,328.70 : x
  2. Step 2: Convert to fraction form
    814,232.70/1,221,349.05 = 394,328.70/x
  3. Step 3: Cross multiply
    814,232.70x = 1,221,349.05 × 394,328.70
  4. Step 4: Simplify right side
    814,232.70x = 481,612,983,132.74
  5. Step 5: Solve for x
    x = 481,612,983,132.74/814,232.70
  6. Step 6: Final answer
    x = 591,493.05

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Double scale
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Similar ratio
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1.5x scale

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.