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Finding the Fourth Proportional to 709,057.96, 978,861.32 and 547,550.44

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Solution

The fourth proportional to 709,057.96, 978,861.32 and 547,550.44 is: 755,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,057.96 : 978,861.32 = 547,550.44 : x
  2. Step 2: Convert to fraction form
    709,057.96/978,861.32 = 547,550.44/x
  3. Step 3: Cross multiply
    709,057.96x = 978,861.32 × 547,550.44
  4. Step 4: Simplify right side
    709,057.96x = 535,975,946,464.98
  5. Step 5: Solve for x
    x = 535,975,946,464.98/709,057.96
  6. Step 6: Final answer
    x = 755,898.64

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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.