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Finding the Fourth Proportional to 445,913.58, 667,326.48 and 275,065.14

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Solution

The fourth proportional to 445,913.58, 667,326.48 and 275,065.14 is: 411,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,913.58 : 667,326.48 = 275,065.14 : x
  2. Step 2: Convert to fraction form
    445,913.58/667,326.48 = 275,065.14/x
  3. Step 3: Cross multiply
    445,913.58x = 667,326.48 × 275,065.14
  4. Step 4: Simplify right side
    445,913.58x = 183,558,251,646.91
  5. Step 5: Solve for x
    x = 183,558,251,646.91/445,913.58
  6. Step 6: Final answer
    x = 411,645.35

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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.