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Finding the Fourth Proportional to 418,453.02, 627,326.64 and 181,617.12

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Solution

The fourth proportional to 418,453.02, 627,326.64 and 181,617.12 is: 272,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,453.02 : 627,326.64 = 181,617.12 : x
  2. Step 2: Convert to fraction form
    418,453.02/627,326.64 = 181,617.12/x
  3. Step 3: Cross multiply
    418,453.02x = 627,326.64 × 181,617.12
  4. Step 4: Simplify right side
    418,453.02x = 113,933,257,656.08
  5. Step 5: Solve for x
    x = 113,933,257,656.08/418,453.02
  6. Step 6: Final answer
    x = 272,272.52

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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.