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Finding the Fourth Proportional to 1,961,570.20, 2,942,711.02 and 808,176.26

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Solution

The fourth proportional to 1,961,570.20, 2,942,711.02 and 808,176.26 is: 1,212,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,570.20 : 2,942,711.02 = 808,176.26 : x
  2. Step 2: Convert to fraction form
    1,961,570.20/2,942,711.02 = 808,176.26/x
  3. Step 3: Cross multiply
    1,961,570.20x = 2,942,711.02 × 808,176.26
  4. Step 4: Simplify right side
    1,961,570.20x = 2,378,229,186,404.39
  5. Step 5: Solve for x
    x = 2,378,229,186,404.39/1,961,570.20
  6. Step 6: Final answer
    x = 1,212,410.95

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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.