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Finding the Fourth Proportional to 2,687,993.76, 3,709,429.76 and 1,480,769.76

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Solution

The fourth proportional to 2,687,993.76, 3,709,429.76 and 1,480,769.76 is: 2,043,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687,993.76 : 3,709,429.76 = 1,480,769.76 : x
  2. Step 2: Convert to fraction form
    2,687,993.76/3,709,429.76 = 1,480,769.76/x
  3. Step 3: Cross multiply
    2,687,993.76x = 3,709,429.76 × 1,480,769.76
  4. Step 4: Simplify right side
    2,687,993.76x = 5,492,811,415,452.06
  5. Step 5: Solve for x
    x = 5,492,811,415,452.06/2,687,993.76
  6. Step 6: Final answer
    x = 2,043,461.37

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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.