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Finding the Fourth Proportional to 565,405.60, 848,108.40 and 285,469.60

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Solution

The fourth proportional to 565,405.60, 848,108.40 and 285,469.60 is: 428,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,405.60 : 848,108.40 = 285,469.60 : x
  2. Step 2: Convert to fraction form
    565,405.60/848,108.40 = 285,469.60/x
  3. Step 3: Cross multiply
    565,405.60x = 848,108.40 × 285,469.60
  4. Step 4: Simplify right side
    565,405.60x = 242,109,165,704.64
  5. Step 5: Solve for x
    x = 242,109,165,704.64/565,405.60
  6. Step 6: Final answer
    x = 428,204.40

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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.