Home / 813,874.94-1,219,573.08-413,916.38

Finding the Fourth Proportional to 813,874.94, 1,219,573.08 and 413,916.38

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Solution

The fourth proportional to 813,874.94, 1,219,573.08 and 413,916.38 is: 620,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,874.94 : 1,219,573.08 = 413,916.38 : x
  2. Step 2: Convert to fraction form
    813,874.94/1,219,573.08 = 413,916.38/x
  3. Step 3: Cross multiply
    813,874.94x = 1,219,573.08 × 413,916.38
  4. Step 4: Simplify right side
    813,874.94x = 504,801,274,419.05
  5. Step 5: Solve for x
    x = 504,801,274,419.05/813,874.94
  6. Step 6: Final answer
    x = 620,244.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.