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Finding the Fourth Proportional to 1,728,826.10, 2,593,239.15 and 1,640,252.60

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Solution

The fourth proportional to 1,728,826.10, 2,593,239.15 and 1,640,252.60 is: 2,460,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,826.10 : 2,593,239.15 = 1,640,252.60 : x
  2. Step 2: Convert to fraction form
    1,728,826.10/2,593,239.15 = 1,640,252.60/x
  3. Step 3: Cross multiply
    1,728,826.10x = 2,593,239.15 × 1,640,252.60
  4. Step 4: Simplify right side
    1,728,826.10x = 4,253,567,258,209.29
  5. Step 5: Solve for x
    x = 4,253,567,258,209.29/1,728,826.10
  6. Step 6: Final answer
    x = 2,460,378.90

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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.