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Finding the Fourth Proportional to 476,348.28, 714,662.78 and 191,892.45

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Solution

The fourth proportional to 476,348.28, 714,662.78 and 191,892.45 is: 287,895.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,348.28 : 714,662.78 = 191,892.45 : x
  2. Step 2: Convert to fraction form
    476,348.28/714,662.78 = 191,892.45/x
  3. Step 3: Cross multiply
    476,348.28x = 714,662.78 × 191,892.45
  4. Step 4: Simplify right side
    476,348.28x = 137,138,394,872.58
  5. Step 5: Solve for x
    x = 137,138,394,872.58/476,348.28
  6. Step 6: Final answer
    x = 287,895.22

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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.