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Finding the Fourth Proportional to 427,843.01, 641,785.24 and 352,826.17

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Solution

The fourth proportional to 427,843.01, 641,785.24 and 352,826.17 is: 529,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,843.01 : 641,785.24 = 352,826.17 : x
  2. Step 2: Convert to fraction form
    427,843.01/641,785.24 = 352,826.17/x
  3. Step 3: Cross multiply
    427,843.01x = 641,785.24 × 352,826.17
  4. Step 4: Simplify right side
    427,843.01x = 226,438,628,111.90
  5. Step 5: Solve for x
    x = 226,438,628,111.90/427,843.01
  6. Step 6: Final answer
    x = 529,256.35

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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.