Home / 814,388.29-1,123,990.74-451,928.57

Finding the Fourth Proportional to 814,388.29, 1,123,990.74 and 451,928.57

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Solution

The fourth proportional to 814,388.29, 1,123,990.74 and 451,928.57 is: 623,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,388.29 : 1,123,990.74 = 451,928.57 : x
  2. Step 2: Convert to fraction form
    814,388.29/1,123,990.74 = 451,928.57/x
  3. Step 3: Cross multiply
    814,388.29x = 1,123,990.74 × 451,928.57
  4. Step 4: Simplify right side
    814,388.29x = 507,963,530,631.42
  5. Step 5: Solve for x
    x = 507,963,530,631.42/814,388.29
  6. Step 6: Final answer
    x = 623,736.29

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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.