Home / 813,913.89-1,123,179.90-451,336.62

Finding the Fourth Proportional to 813,913.89, 1,123,179.90 and 451,336.62

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Solution

The fourth proportional to 813,913.89, 1,123,179.90 and 451,336.62 is: 622,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,913.89 : 1,123,179.90 = 451,336.62 : x
  2. Step 2: Convert to fraction form
    813,913.89/1,123,179.90 = 451,336.62/x
  3. Step 3: Cross multiply
    813,913.89x = 1,123,179.90 × 451,336.62
  4. Step 4: Simplify right side
    813,913.89x = 506,932,219,717.94
  5. Step 5: Solve for x
    x = 506,932,219,717.94/813,913.89
  6. Step 6: Final answer
    x = 622,832.74

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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.