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Finding the Fourth Proportional to 418,708.44, 627,968.32 and 119,182.38

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Solution

The fourth proportional to 418,708.44, 627,968.32 and 119,182.38 is: 178,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,708.44 : 627,968.32 = 119,182.38 : x
  2. Step 2: Convert to fraction form
    418,708.44/627,968.32 = 119,182.38/x
  3. Step 3: Cross multiply
    418,708.44x = 627,968.32 × 119,182.38
  4. Step 4: Simplify right side
    418,708.44x = 74,842,758,942.20
  5. Step 5: Solve for x
    x = 74,842,758,942.20/418,708.44
  6. Step 6: Final answer
    x = 178,746.72

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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.