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Finding the Fourth Proportional to 418,554.24, 627,477.44 and 181,717.76

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Solution

The fourth proportional to 418,554.24, 627,477.44 and 181,717.76 is: 272,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,554.24 : 627,477.44 = 181,717.76 : x
  2. Step 2: Convert to fraction form
    418,554.24/627,477.44 = 181,717.76/x
  3. Step 3: Cross multiply
    418,554.24x = 627,477.44 × 181,717.76
  4. Step 4: Simplify right side
    418,554.24x = 114,023,794,847.33
  5. Step 5: Solve for x
    x = 114,023,794,847.33/418,554.24
  6. Step 6: Final answer
    x = 272,422.98

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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.