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Finding the Fourth Proportional to 3,248,018.72, 4,869,813.68 and 1,647,495.56

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Solution

The fourth proportional to 3,248,018.72, 4,869,813.68 and 1,647,495.56 is: 2,470,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248,018.72 : 4,869,813.68 = 1,647,495.56 : x
  2. Step 2: Convert to fraction form
    3,248,018.72/4,869,813.68 = 1,647,495.56/x
  3. Step 3: Cross multiply
    3,248,018.72x = 4,869,813.68 × 1,647,495.56
  4. Step 4: Simplify right side
    3,248,018.72x = 8,022,996,415,827.26
  5. Step 5: Solve for x
    x = 8,022,996,415,827.26/3,248,018.72
  6. Step 6: Final answer
    x = 2,470,120.13

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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.