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Finding the Fourth Proportional to 445,467.40, 667,905.90 and 245,883.40

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Solution

The fourth proportional to 445,467.40, 667,905.90 and 245,883.40 is: 368,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,467.40 : 667,905.90 = 245,883.40 : x
  2. Step 2: Convert to fraction form
    445,467.40/667,905.90 = 245,883.40/x
  3. Step 3: Cross multiply
    445,467.40x = 667,905.90 × 245,883.40
  4. Step 4: Simplify right side
    445,467.40x = 164,226,973,572.06
  5. Step 5: Solve for x
    x = 164,226,973,572.06/445,467.40
  6. Step 6: Final answer
    x = 368,662.16

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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.