Home / 814,340.76-1,123,793.12-451,771.80

Finding the Fourth Proportional to 814,340.76, 1,123,793.12 and 451,771.80

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Solution

The fourth proportional to 814,340.76, 1,123,793.12 and 451,771.80 is: 623,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,340.76 : 1,123,793.12 = 451,771.80 : x
  2. Step 2: Convert to fraction form
    814,340.76/1,123,793.12 = 451,771.80/x
  3. Step 3: Cross multiply
    814,340.76x = 1,123,793.12 × 451,771.80
  4. Step 4: Simplify right side
    814,340.76x = 507,698,040,650.02
  5. Step 5: Solve for x
    x = 507,698,040,650.02/814,340.76
  6. Step 6: Final answer
    x = 623,446.68

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Half scale
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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.