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Finding the Fourth Proportional to 1,868,014.80, 2,804,095.80 and 1,158,843.60

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Solution

The fourth proportional to 1,868,014.80, 2,804,095.80 and 1,158,843.60 is: 1,739,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,014.80 : 2,804,095.80 = 1,158,843.60 : x
  2. Step 2: Convert to fraction form
    1,868,014.80/2,804,095.80 = 1,158,843.60/x
  3. Step 3: Cross multiply
    1,868,014.80x = 2,804,095.80 × 1,158,843.60
  4. Step 4: Simplify right side
    1,868,014.80x = 3,249,508,471,616.88
  5. Step 5: Solve for x
    x = 3,249,508,471,616.88/1,868,014.80
  6. Step 6: Final answer
    x = 1,739,551.78

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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.