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Finding the Fourth Proportional to 1,093,839.60, 1,637,994.60 and 717,826.80

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Solution

The fourth proportional to 1,093,839.60, 1,637,994.60 and 717,826.80 is: 1,074,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,839.60 : 1,637,994.60 = 717,826.80 : x
  2. Step 2: Convert to fraction form
    1,093,839.60/1,637,994.60 = 717,826.80/x
  3. Step 3: Cross multiply
    1,093,839.60x = 1,637,994.60 × 717,826.80
  4. Step 4: Simplify right side
    1,093,839.60x = 1,175,796,422,135.28
  5. Step 5: Solve for x
    x = 1,175,796,422,135.28/1,093,839.60
  6. Step 6: Final answer
    x = 1,074,925.81

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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.