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Finding the Fourth Proportional to 451,493.88, 623,068.56 and 247,563.42

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Solution

The fourth proportional to 451,493.88, 623,068.56 and 247,563.42 is: 341,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,493.88 : 623,068.56 = 247,563.42 : x
  2. Step 2: Convert to fraction form
    451,493.88/623,068.56 = 247,563.42/x
  3. Step 3: Cross multiply
    451,493.88x = 623,068.56 × 247,563.42
  4. Step 4: Simplify right side
    451,493.88x = 154,248,983,608.08
  5. Step 5: Solve for x
    x = 154,248,983,608.08/451,493.88
  6. Step 6: Final answer
    x = 341,641.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.