Home / 813,869.94-1,219,565.61-413,911.38

Finding the Fourth Proportional to 813,869.94, 1,219,565.61 and 413,911.38

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Solution

The fourth proportional to 813,869.94, 1,219,565.61 and 413,911.38 is: 620,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,869.94 : 1,219,565.61 = 413,911.38 : x
  2. Step 2: Convert to fraction form
    813,869.94/1,219,565.61 = 413,911.38/x
  3. Step 3: Cross multiply
    813,869.94x = 1,219,565.61 × 413,911.38
  4. Step 4: Simplify right side
    813,869.94x = 504,792,084,635.64
  5. Step 5: Solve for x
    x = 504,792,084,635.64/813,869.94
  6. Step 6: Final answer
    x = 620,236.80

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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.