Home / 814,512.40-1,221,768.60-531,077.20

Finding the Fourth Proportional to 814,512.40, 1,221,768.60 and 531,077.20

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Solution

The fourth proportional to 814,512.40, 1,221,768.60 and 531,077.20 is: 796,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,512.40 : 1,221,768.60 = 531,077.20 : x
  2. Step 2: Convert to fraction form
    814,512.40/1,221,768.60 = 531,077.20/x
  3. Step 3: Cross multiply
    814,512.40x = 1,221,768.60 × 531,077.20
  4. Step 4: Simplify right side
    814,512.40x = 648,853,447,135.92
  5. Step 5: Solve for x
    x = 648,853,447,135.92/814,512.40
  6. Step 6: Final answer
    x = 796,615.80

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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.