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Finding the Fourth Proportional to 587,469.20, 881,222.96 and 279,654.40

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Solution

The fourth proportional to 587,469.20, 881,222.96 and 279,654.40 is: 419,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,469.20 : 881,222.96 = 279,654.40 : x
  2. Step 2: Convert to fraction form
    587,469.20/881,222.96 = 279,654.40/x
  3. Step 3: Cross multiply
    587,469.20x = 881,222.96 × 279,654.40
  4. Step 4: Simplify right side
    587,469.20x = 246,437,878,145.02
  5. Step 5: Solve for x
    x = 246,437,878,145.02/587,469.20
  6. Step 6: Final answer
    x = 419,490.72

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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.