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Finding the Fourth Proportional to 1,993,894.40, 2,990,841.60 and 1,773,444.80

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Solution

The fourth proportional to 1,993,894.40, 2,990,841.60 and 1,773,444.80 is: 2,660,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,894.40 : 2,990,841.60 = 1,773,444.80 : x
  2. Step 2: Convert to fraction form
    1,993,894.40/2,990,841.60 = 1,773,444.80/x
  3. Step 3: Cross multiply
    1,993,894.40x = 2,990,841.60 × 1,773,444.80
  4. Step 4: Simplify right side
    1,993,894.40x = 5,304,092,483,143.68
  5. Step 5: Solve for x
    x = 5,304,092,483,143.68/1,993,894.40
  6. Step 6: Final answer
    x = 2,660,167.20

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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.