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Finding the Fourth Proportional to 1,971,394.04, 2,719,855.52 and 1,608,190.04

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Solution

The fourth proportional to 1,971,394.04, 2,719,855.52 and 1,608,190.04 is: 2,218,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,394.04 : 2,719,855.52 = 1,608,190.04 : x
  2. Step 2: Convert to fraction form
    1,971,394.04/2,719,855.52 = 1,608,190.04/x
  3. Step 3: Cross multiply
    1,971,394.04x = 2,719,855.52 × 1,608,190.04
  4. Step 4: Simplify right side
    1,971,394.04x = 4,374,044,557,503.02
  5. Step 5: Solve for x
    x = 4,374,044,557,503.02/1,971,394.04
  6. Step 6: Final answer
    x = 2,218,757.12

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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.