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Finding the Fourth Proportional to 3,658,788.22, 5,493,209.74 and 1,862,878.49

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Solution

The fourth proportional to 3,658,788.22, 5,493,209.74 and 1,862,878.49 is: 2,796,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658,788.22 : 5,493,209.74 = 1,862,878.49 : x
  2. Step 2: Convert to fraction form
    3,658,788.22/5,493,209.74 = 1,862,878.49/x
  3. Step 3: Cross multiply
    3,658,788.22x = 5,493,209.74 × 1,862,878.49
  4. Step 4: Simplify right side
    3,658,788.22x = 10,233,182,265,704.49
  5. Step 5: Solve for x
    x = 10,233,182,265,704.49/3,658,788.22
  6. Step 6: Final answer
    x = 2,796,877.45

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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.