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Finding the Fourth Proportional to 445,468.40, 667,907.40 and 245,884.40

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Solution

The fourth proportional to 445,468.40, 667,907.40 and 245,884.40 is: 368,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,468.40 : 667,907.40 = 245,884.40 : x
  2. Step 2: Convert to fraction form
    445,468.40/667,907.40 = 245,884.40/x
  3. Step 3: Cross multiply
    445,468.40x = 667,907.40 × 245,884.40
  4. Step 4: Simplify right side
    445,468.40x = 164,228,010,304.56
  5. Step 5: Solve for x
    x = 164,228,010,304.56/445,468.40
  6. Step 6: Final answer
    x = 368,663.66

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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.