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Finding the Fourth Proportional to 3,216,876.14, 4,826,248.16 and 1,296,796.46

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Solution

The fourth proportional to 3,216,876.14, 4,826,248.16 and 1,296,796.46 is: 1,945,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216,876.14 : 4,826,248.16 = 1,296,796.46 : x
  2. Step 2: Convert to fraction form
    3,216,876.14/4,826,248.16 = 1,296,796.46/x
  3. Step 3: Cross multiply
    3,216,876.14x = 4,826,248.16 × 1,296,796.46
  4. Step 4: Simplify right side
    3,216,876.14x = 6,258,661,498,354.29
  5. Step 5: Solve for x
    x = 6,258,661,498,354.29/3,216,876.14
  6. Step 6: Final answer
    x = 1,945,571.18

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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.