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Finding the Fourth Proportional to 1,973,855.40, 2,954,878.20 and 1,737,659.40

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Solution

The fourth proportional to 1,973,855.40, 2,954,878.20 and 1,737,659.40 is: 2,601,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,855.40 : 2,954,878.20 = 1,737,659.40 : x
  2. Step 2: Convert to fraction form
    1,973,855.40/2,954,878.20 = 1,737,659.40/x
  3. Step 3: Cross multiply
    1,973,855.40x = 2,954,878.20 × 1,737,659.40
  4. Step 4: Simplify right side
    1,973,855.40x = 5,134,571,880,085.08
  5. Step 5: Solve for x
    x = 5,134,571,880,085.08/1,973,855.40
  6. Step 6: Final answer
    x = 2,601,290.79

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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.