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Finding the Fourth Proportional to 1,885,806.02, 2,824,206.55 and 1,085,405.14

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Solution

The fourth proportional to 1,885,806.02, 2,824,206.55 and 1,085,405.14 is: 1,625,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,806.02 : 2,824,206.55 = 1,085,405.14 : x
  2. Step 2: Convert to fraction form
    1,885,806.02/2,824,206.55 = 1,085,405.14/x
  3. Step 3: Cross multiply
    1,885,806.02x = 2,824,206.55 × 1,085,405.14
  4. Step 4: Simplify right side
    1,885,806.02x = 3,065,408,305,791.67
  5. Step 5: Solve for x
    x = 3,065,408,305,791.67/1,885,806.02
  6. Step 6: Final answer
    x = 1,625,516.24

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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.