Home / 814,030.80-1,123,431.51-451,571.44

Finding the Fourth Proportional to 814,030.80, 1,123,431.51 and 451,571.44

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Solution

The fourth proportional to 814,030.80, 1,123,431.51 and 451,571.44 is: 623,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,030.80 : 1,123,431.51 = 451,571.44 : x
  2. Step 2: Convert to fraction form
    814,030.80/1,123,431.51 = 451,571.44/x
  3. Step 3: Cross multiply
    814,030.80x = 1,123,431.51 × 451,571.44
  4. Step 4: Simplify right side
    814,030.80x = 507,309,584,712.07
  5. Step 5: Solve for x
    x = 507,309,584,712.07/814,030.80
  6. Step 6: Final answer
    x = 623,206.87

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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.