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Finding the Fourth Proportional to 1,971,920.22, 2,956,626.44 and 834,087.30

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Solution

The fourth proportional to 1,971,920.22, 2,956,626.44 and 834,087.30 is: 1,250,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,920.22 : 2,956,626.44 = 834,087.30 : x
  2. Step 2: Convert to fraction form
    1,971,920.22/2,956,626.44 = 834,087.30/x
  3. Step 3: Cross multiply
    1,971,920.22x = 2,956,626.44 × 834,087.30
  4. Step 4: Simplify right side
    1,971,920.22x = 2,466,084,564,448.21
  5. Step 5: Solve for x
    x = 2,466,084,564,448.21/1,971,920.22
  6. Step 6: Final answer
    x = 1,250,600.58

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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.