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Finding the Fourth Proportional to 418,561.80, 627,828.64 and 181,904.52

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Solution

The fourth proportional to 418,561.80, 627,828.64 and 181,904.52 is: 272,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,561.80 : 627,828.64 = 181,904.52 : x
  2. Step 2: Convert to fraction form
    418,561.80/627,828.64 = 181,904.52/x
  3. Step 3: Cross multiply
    418,561.80x = 627,828.64 × 181,904.52
  4. Step 4: Simplify right side
    418,561.80x = 114,204,867,401.45
  5. Step 5: Solve for x
    x = 114,204,867,401.45/418,561.80
  6. Step 6: Final answer
    x = 272,850.67

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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.