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Finding the Fourth Proportional to 2,580,078.04, 3,868,621.66 and 873,651.76

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Solution

The fourth proportional to 2,580,078.04, 3,868,621.66 and 873,651.76 is: 1,309,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580,078.04 : 3,868,621.66 = 873,651.76 : x
  2. Step 2: Convert to fraction form
    2,580,078.04/3,868,621.66 = 873,651.76/x
  3. Step 3: Cross multiply
    2,580,078.04x = 3,868,621.66 × 873,651.76
  4. Step 4: Simplify right side
    2,580,078.04x = 3,379,828,122,033.12
  5. Step 5: Solve for x
    x = 3,379,828,122,033.12/2,580,078.04
  6. Step 6: Final answer
    x = 1,309,971.28

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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.