Home / 621,834.54-931,257.06-354,785.43

Finding the Fourth Proportional to 621,834.54, 931,257.06 and 354,785.43

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Solution

The fourth proportional to 621,834.54, 931,257.06 and 354,785.43 is: 531,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,834.54 : 931,257.06 = 354,785.43 : x
  2. Step 2: Convert to fraction form
    621,834.54/931,257.06 = 354,785.43/x
  3. Step 3: Cross multiply
    621,834.54x = 931,257.06 × 354,785.43
  4. Step 4: Simplify right side
    621,834.54x = 330,396,436,472.64
  5. Step 5: Solve for x
    x = 330,396,436,472.64/621,834.54
  6. Step 6: Final answer
    x = 531,325.32

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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.