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Finding the Fourth Proportional to 1,797,260.80, 2,480,769.12 and 1,109,143.12

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Solution

The fourth proportional to 1,797,260.80, 2,480,769.12 and 1,109,143.12 is: 1,530,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797,260.80 : 2,480,769.12 = 1,109,143.12 : x
  2. Step 2: Convert to fraction form
    1,797,260.80/2,480,769.12 = 1,109,143.12/x
  3. Step 3: Cross multiply
    1,797,260.80x = 2,480,769.12 × 1,109,143.12
  4. Step 4: Simplify right side
    1,797,260.80x = 2,751,528,001,756.45
  5. Step 5: Solve for x
    x = 2,751,528,001,756.45/1,797,260.80
  6. Step 6: Final answer
    x = 1,530,956.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.