Home / 621,834.39-931,256.73-354,785.22

Finding the Fourth Proportional to 621,834.39, 931,256.73 and 354,785.22

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Solution

The fourth proportional to 621,834.39, 931,256.73 and 354,785.22 is: 531,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,834.39 : 931,256.73 = 354,785.22 : x
  2. Step 2: Convert to fraction form
    621,834.39/931,256.73 = 354,785.22/x
  3. Step 3: Cross multiply
    621,834.39x = 931,256.73 × 354,785.22
  4. Step 4: Simplify right side
    621,834.39x = 330,396,123,829.53
  5. Step 5: Solve for x
    x = 330,396,123,829.53/621,834.39
  6. Step 6: Final answer
    x = 531,324.95

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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.