Home / 813,977.91-1,123,325.82-451,377.46

Finding the Fourth Proportional to 813,977.91, 1,123,325.82 and 451,377.46

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Solution

The fourth proportional to 813,977.91, 1,123,325.82 and 451,377.46 is: 622,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,977.91 : 1,123,325.82 = 451,377.46 : x
  2. Step 2: Convert to fraction form
    813,977.91/1,123,325.82 = 451,377.46/x
  3. Step 3: Cross multiply
    813,977.91x = 1,123,325.82 × 451,377.46
  4. Step 4: Simplify right side
    813,977.91x = 507,043,956,788.18
  5. Step 5: Solve for x
    x = 507,043,956,788.18/813,977.91
  6. Step 6: Final answer
    x = 622,921.03

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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.