Home / 814,105.49-1,123,534.40-451,645.88

Finding the Fourth Proportional to 814,105.49, 1,123,534.40 and 451,645.88

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Solution

The fourth proportional to 814,105.49, 1,123,534.40 and 451,645.88 is: 623,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,105.49 : 1,123,534.40 = 451,645.88 : x
  2. Step 2: Convert to fraction form
    814,105.49/1,123,534.40 = 451,645.88/x
  3. Step 3: Cross multiply
    814,105.49x = 1,123,534.40 × 451,645.88
  4. Step 4: Simplify right side
    814,105.49x = 507,439,674,922.37
  5. Step 5: Solve for x
    x = 507,439,674,922.37/814,105.49
  6. Step 6: Final answer
    x = 623,309.49

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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.