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Finding the Fourth Proportional to 418,404.15, 627,253.49 and 181,568.43

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Solution

The fourth proportional to 418,404.15, 627,253.49 and 181,568.43 is: 272,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,404.15 : 627,253.49 = 181,568.43 : x
  2. Step 2: Convert to fraction form
    418,404.15/627,253.49 = 181,568.43/x
  3. Step 3: Cross multiply
    418,404.15x = 627,253.49 × 181,568.43
  4. Step 4: Simplify right side
    418,404.15x = 113,889,430,483.48
  5. Step 5: Solve for x
    x = 113,889,430,483.48/418,404.15
  6. Step 6: Final answer
    x = 272,199.57

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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.